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Finding the Fourth Proportional to 92,690,492.80, 139,068,916.80 and 38,854,307.20

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Solution

The fourth proportional to 92,690,492.80, 139,068,916.80 and 38,854,307.20 is: 58,295,368.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,690,492.80 : 139,068,916.80 = 38,854,307.20 : x
  2. Step 2: Convert to fraction form
    92,690,492.80/139,068,916.80 = 38,854,307.20/x
  3. Step 3: Cross multiply
    92,690,492.80x = 139,068,916.80 × 38,854,307.20
  4. Step 4: Simplify right side
    92,690,492.80x = 5,403,426,415,318,442
  5. Step 5: Solve for x
    x = 5,403,426,415,318,442/92,690,492.80
  6. Step 6: Final answer
    x = 58,295,368.30

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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.