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Finding the Fourth Proportional to 688,344,280.60, 964,398,629 and 688,344,280.60

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Solution

The fourth proportional to 688,344,280.60, 964,398,629 and 688,344,280.60 is: 964,398,629

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,344,280.60 : 964,398,629 = 688,344,280.60 : x
  2. Step 2: Convert to fraction form
    688,344,280.60/964,398,629 = 688,344,280.60/x
  3. Step 3: Cross multiply
    688,344,280.60x = 964,398,629 × 688,344,280.60
  4. Step 4: Simplify right side
    688,344,280.60x = 663,838,280,490,631,296
  5. Step 5: Solve for x
    x = 663,838,280,490,631,296/688,344,280.60
  6. Step 6: Final answer
    x = 964,398,629

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.