Home / 869,124,001.70-1,303,686,002.55-460,977,313.70

Finding the Fourth Proportional to 869,124,001.70, 1,303,686,002.55 and 460,977,313.70

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Solution

The fourth proportional to 869,124,001.70, 1,303,686,002.55 and 460,977,313.70 is: 691,465,970.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,124,001.70 : 1,303,686,002.55 = 460,977,313.70 : x
  2. Step 2: Convert to fraction form
    869,124,001.70/1,303,686,002.55 = 460,977,313.70/x
  3. Step 3: Cross multiply
    869,124,001.70x = 1,303,686,002.55 × 460,977,313.70
  4. Step 4: Simplify right side
    869,124,001.70x = 600,969,671,363,790,336
  5. Step 5: Solve for x
    x = 600,969,671,363,790,336/869,124,001.70
  6. Step 6: Final answer
    x = 691,465,970.55

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Double scale
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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.