Home / 74,754,969.40-112,132,454.10-66,692,812.60

Finding the Fourth Proportional to 74,754,969.40, 112,132,454.10 and 66,692,812.60

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Solution

The fourth proportional to 74,754,969.40, 112,132,454.10 and 66,692,812.60 is: 100,039,218.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,754,969.40 : 112,132,454.10 = 66,692,812.60 : x
  2. Step 2: Convert to fraction form
    74,754,969.40/112,132,454.10 = 66,692,812.60/x
  3. Step 3: Cross multiply
    74,754,969.40x = 112,132,454.10 × 66,692,812.60
  4. Step 4: Simplify right side
    74,754,969.40x = 7,478,428,747,669,401
  5. Step 5: Solve for x
    x = 7,478,428,747,669,401/74,754,969.40
  6. Step 6: Final answer
    x = 100,039,218.90

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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.