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Finding the Fourth Proportional to 145,681,772.10, 218,522,658.15 and 145,681,772.10

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Solution

The fourth proportional to 145,681,772.10, 218,522,658.15 and 145,681,772.10 is: 218,522,658.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,681,772.10 : 218,522,658.15 = 145,681,772.10 : x
  2. Step 2: Convert to fraction form
    145,681,772.10/218,522,658.15 = 145,681,772.10/x
  3. Step 3: Cross multiply
    145,681,772.10x = 218,522,658.15 × 145,681,772.10
  4. Step 4: Simplify right side
    145,681,772.10x = 31,834,768,083,294,508
  5. Step 5: Solve for x
    x = 31,834,768,083,294,508/145,681,772.10
  6. Step 6: Final answer
    x = 218,522,658.15

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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.