Home / 78,327,838.15-117,451,209.03-35,159,869.87

Finding the Fourth Proportional to 78,327,838.15, 117,451,209.03 and 35,159,869.87

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Solution

The fourth proportional to 78,327,838.15, 117,451,209.03 and 35,159,869.87 is: 52,721,603.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,327,838.15 : 117,451,209.03 = 35,159,869.87 : x
  2. Step 2: Convert to fraction form
    78,327,838.15/117,451,209.03 = 35,159,869.87/x
  3. Step 3: Cross multiply
    78,327,838.15x = 117,451,209.03 × 35,159,869.87
  4. Step 4: Simplify right side
    78,327,838.15x = 4,129,569,225,568,968.50
  5. Step 5: Solve for x
    x = 4,129,569,225,568,968.50/78,327,838.15
  6. Step 6: Final answer
    x = 52,721,603.50

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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.