Home / 859,628,609.10-1,286,466,844.05-514,829,688.30

Finding the Fourth Proportional to 859,628,609.10, 1,286,466,844.05 and 514,829,688.30

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Solution

The fourth proportional to 859,628,609.10, 1,286,466,844.05 and 514,829,688.30 is: 770,462,170.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,628,609.10 : 1,286,466,844.05 = 514,829,688.30 : x
  2. Step 2: Convert to fraction form
    859,628,609.10/1,286,466,844.05 = 514,829,688.30/x
  3. Step 3: Cross multiply
    859,628,609.10x = 1,286,466,844.05 × 514,829,688.30
  4. Step 4: Simplify right side
    859,628,609.10x = 662,311,324,330,546,176
  5. Step 5: Solve for x
    x = 662,311,324,330,546,176/859,628,609.10
  6. Step 6: Final answer
    x = 770,462,170.89

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Double scale
Find fourth proportional to 859,628,610.10, 1,286,466,845.55 and 514,829,689.30
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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.