Home / 137,522,630.16-189,769,889.88-80,998,565.40

Finding the Fourth Proportional to 137,522,630.16, 189,769,889.88 and 80,998,565.40

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Solution

The fourth proportional to 137,522,630.16, 189,769,889.88 and 80,998,565.40 is: 111,771,341.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,522,630.16 : 189,769,889.88 = 80,998,565.40 : x
  2. Step 2: Convert to fraction form
    137,522,630.16/189,769,889.88 = 80,998,565.40/x
  3. Step 3: Cross multiply
    137,522,630.16x = 189,769,889.88 × 80,998,565.40
  4. Step 4: Simplify right side
    137,522,630.16x = 15,371,088,836,395,978
  5. Step 5: Solve for x
    x = 15,371,088,836,395,978/137,522,630.16
  6. Step 6: Final answer
    x = 111,771,341.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.