Home / 80,676,406.80-121,014,610.20-74,440,832.40

Finding the Fourth Proportional to 80,676,406.80, 121,014,610.20 and 74,440,832.40

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Solution

The fourth proportional to 80,676,406.80, 121,014,610.20 and 74,440,832.40 is: 111,661,248.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,676,406.80 : 121,014,610.20 = 74,440,832.40 : x
  2. Step 2: Convert to fraction form
    80,676,406.80/121,014,610.20 = 74,440,832.40/x
  3. Step 3: Cross multiply
    80,676,406.80x = 121,014,610.20 × 74,440,832.40
  4. Step 4: Simplify right side
    80,676,406.80x = 9,008,428,315,849,532
  5. Step 5: Solve for x
    x = 9,008,428,315,849,532/80,676,406.80
  6. Step 6: Final answer
    x = 111,661,248.60

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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.