Home / 80,852,829.70-121,284,493.35-42,589,077.70

Finding the Fourth Proportional to 80,852,829.70, 121,284,493.35 and 42,589,077.70

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Solution

The fourth proportional to 80,852,829.70, 121,284,493.35 and 42,589,077.70 is: 63,886,381.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,852,829.70 : 121,284,493.35 = 42,589,077.70 : x
  2. Step 2: Convert to fraction form
    80,852,829.70/121,284,493.35 = 42,589,077.70/x
  3. Step 3: Cross multiply
    80,852,829.70x = 121,284,493.35 × 42,589,077.70
  4. Step 4: Simplify right side
    80,852,829.70x = 5,165,394,711,088,283
  5. Step 5: Solve for x
    x = 5,165,394,711,088,283/80,852,829.70
  6. Step 6: Final answer
    x = 63,886,381.35

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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.