Home / 83,989,969.20-125,984,953.80-69,641,062.20

Finding the Fourth Proportional to 83,989,969.20, 125,984,953.80 and 69,641,062.20

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Solution

The fourth proportional to 83,989,969.20, 125,984,953.80 and 69,641,062.20 is: 104,461,593.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,989,969.20 : 125,984,953.80 = 69,641,062.20 : x
  2. Step 2: Convert to fraction form
    83,989,969.20/125,984,953.80 = 69,641,062.20/x
  3. Step 3: Cross multiply
    83,989,969.20x = 125,984,953.80 × 69,641,062.20
  4. Step 4: Simplify right side
    83,989,969.20x = 8,773,726,003,849,927
  5. Step 5: Solve for x
    x = 8,773,726,003,849,927/83,989,969.20
  6. Step 6: Final answer
    x = 104,461,593.30

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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.