Home / 67,792,938.80-101,689,408.20-39,127,492.40

Finding the Fourth Proportional to 67,792,938.80, 101,689,408.20 and 39,127,492.40

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Solution

The fourth proportional to 67,792,938.80, 101,689,408.20 and 39,127,492.40 is: 58,691,238.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,792,938.80 : 101,689,408.20 = 39,127,492.40 : x
  2. Step 2: Convert to fraction form
    67,792,938.80/101,689,408.20 = 39,127,492.40/x
  3. Step 3: Cross multiply
    67,792,938.80x = 101,689,408.20 × 39,127,492.40
  4. Step 4: Simplify right side
    67,792,938.80x = 3,978,851,546,505,997.50
  5. Step 5: Solve for x
    x = 3,978,851,546,505,997.50/67,792,938.80
  6. Step 6: Final answer
    x = 58,691,238.60

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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.