Home / 81,206,646.40-121,809,969.60-62,074,770.40

Finding the Fourth Proportional to 81,206,646.40, 121,809,969.60 and 62,074,770.40

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Solution

The fourth proportional to 81,206,646.40, 121,809,969.60 and 62,074,770.40 is: 93,112,155.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,206,646.40 : 121,809,969.60 = 62,074,770.40 : x
  2. Step 2: Convert to fraction form
    81,206,646.40/121,809,969.60 = 62,074,770.40/x
  3. Step 3: Cross multiply
    81,206,646.40x = 121,809,969.60 × 62,074,770.40
  4. Step 4: Simplify right side
    81,206,646.40x = 7,561,325,895,350,979
  5. Step 5: Solve for x
    x = 7,561,325,895,350,979/81,206,646.40
  6. Step 6: Final answer
    x = 93,112,155.60

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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.