Home / 80,723,637.80-121,085,456.70-56,489,928.20

Finding the Fourth Proportional to 80,723,637.80, 121,085,456.70 and 56,489,928.20

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Solution

The fourth proportional to 80,723,637.80, 121,085,456.70 and 56,489,928.20 is: 84,734,892.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,723,637.80 : 121,085,456.70 = 56,489,928.20 : x
  2. Step 2: Convert to fraction form
    80,723,637.80/121,085,456.70 = 56,489,928.20/x
  3. Step 3: Cross multiply
    80,723,637.80x = 121,085,456.70 × 56,489,928.20
  4. Step 4: Simplify right side
    80,723,637.80x = 6,840,108,755,047,209
  5. Step 5: Solve for x
    x = 6,840,108,755,047,209/80,723,637.80
  6. Step 6: Final answer
    x = 84,734,892.30

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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.