Home / 120,753,693.40-181,130,540.10-80,442,909.40

Finding the Fourth Proportional to 120,753,693.40, 181,130,540.10 and 80,442,909.40

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Solution

The fourth proportional to 120,753,693.40, 181,130,540.10 and 80,442,909.40 is: 120,664,364.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,753,693.40 : 181,130,540.10 = 80,442,909.40 : x
  2. Step 2: Convert to fraction form
    120,753,693.40/181,130,540.10 = 80,442,909.40/x
  3. Step 3: Cross multiply
    120,753,693.40x = 181,130,540.10 × 80,442,909.40
  4. Step 4: Simplify right side
    120,753,693.40x = 14,570,667,626,837,368
  5. Step 5: Solve for x
    x = 14,570,667,626,837,368/120,753,693.40
  6. Step 6: Final answer
    x = 120,664,364.10

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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.