Home / 84,218,124.60-126,327,186.90-71,888,693.40

Finding the Fourth Proportional to 84,218,124.60, 126,327,186.90 and 71,888,693.40

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Solution

The fourth proportional to 84,218,124.60, 126,327,186.90 and 71,888,693.40 is: 107,833,040.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,218,124.60 : 126,327,186.90 = 71,888,693.40 : x
  2. Step 2: Convert to fraction form
    84,218,124.60/126,327,186.90 = 71,888,693.40/x
  3. Step 3: Cross multiply
    84,218,124.60x = 126,327,186.90 × 71,888,693.40
  4. Step 4: Simplify right side
    84,218,124.60x = 9,081,496,407,138,598
  5. Step 5: Solve for x
    x = 9,081,496,407,138,598/84,218,124.60
  6. Step 6: Final answer
    x = 107,833,040.10

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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.