Home / 80,387,110.80-120,580,666.20-42,060,373.20

Finding the Fourth Proportional to 80,387,110.80, 120,580,666.20 and 42,060,373.20

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Solution

The fourth proportional to 80,387,110.80, 120,580,666.20 and 42,060,373.20 is: 63,090,559.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,387,110.80 : 120,580,666.20 = 42,060,373.20 : x
  2. Step 2: Convert to fraction form
    80,387,110.80/120,580,666.20 = 42,060,373.20/x
  3. Step 3: Cross multiply
    80,387,110.80x = 120,580,666.20 × 42,060,373.20
  4. Step 4: Simplify right side
    80,387,110.80x = 5,071,667,821,076,626
  5. Step 5: Solve for x
    x = 5,071,667,821,076,626/80,387,110.80
  6. Step 6: Final answer
    x = 63,090,559.80

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1.5x scale

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.