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Finding the Fourth Proportional to 123,894,307.60, 185,841,461.40 and 103,738,915.60

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Solution

The fourth proportional to 123,894,307.60, 185,841,461.40 and 103,738,915.60 is: 155,608,373.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,894,307.60 : 185,841,461.40 = 103,738,915.60 : x
  2. Step 2: Convert to fraction form
    123,894,307.60/185,841,461.40 = 103,738,915.60/x
  3. Step 3: Cross multiply
    123,894,307.60x = 185,841,461.40 × 103,738,915.60
  4. Step 4: Simplify right side
    123,894,307.60x = 19,278,991,679,155,256
  5. Step 5: Solve for x
    x = 19,278,991,679,155,256/123,894,307.60
  6. Step 6: Final answer
    x = 155,608,373.40

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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.