Home / 85,100,581,347.10-127,650,872,020.65-51,578,133,372.70

Finding the Fourth Proportional to 85,100,581,347.10, 127,650,872,020.65 and 51,578,133,372.70

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Solution

The fourth proportional to 85,100,581,347.10, 127,650,872,020.65 and 51,578,133,372.70 is: 77,367,200,059.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,100,581,347.10 : 127,650,872,020.65 = 51,578,133,372.70 : x
  2. Step 2: Convert to fraction form
    85,100,581,347.10/127,650,872,020.65 = 51,578,133,372.70/x
  3. Step 3: Cross multiply
    85,100,581,347.10x = 127,650,872,020.65 × 51,578,133,372.70
  4. Step 4: Simplify right side
    85,100,581,347.10x = 6,583,993,702,222,544,240,640
  5. Step 5: Solve for x
    x = 6,583,993,702,222,544,240,640/85,100,581,347.10
  6. Step 6: Final answer
    x = 77,367,200,059.05

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Double scale
Find fourth proportional to 85,100,581,348.10, 127,650,872,022.15 and 51,578,133,373.70
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.