Home / 103,788,193,143.78-155,666,559,688.11-28,247,230,419.18

Finding the Fourth Proportional to 103,788,193,143.78, 155,666,559,688.11 and 28,247,230,419.18

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Solution

The fourth proportional to 103,788,193,143.78, 155,666,559,688.11 and 28,247,230,419.18 is: 42,366,564,508.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,788,193,143.78 : 155,666,559,688.11 = 28,247,230,419.18 : x
  2. Step 2: Convert to fraction form
    103,788,193,143.78/155,666,559,688.11 = 28,247,230,419.18/x
  3. Step 3: Cross multiply
    103,788,193,143.78x = 155,666,559,688.11 × 28,247,230,419.18
  4. Step 4: Simplify right side
    103,788,193,143.78x = 4,397,149,180,071,079,575,552
  5. Step 5: Solve for x
    x = 4,397,149,180,071,079,575,552/103,788,193,143.78
  6. Step 6: Final answer
    x = 42,366,564,508.74

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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.