Home / 80,852,678.70-121,284,266.85-42,588,926.70

Finding the Fourth Proportional to 80,852,678.70, 121,284,266.85 and 42,588,926.70

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Solution

The fourth proportional to 80,852,678.70, 121,284,266.85 and 42,588,926.70 is: 63,886,154.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,852,678.70 : 121,284,266.85 = 42,588,926.70 : x
  2. Step 2: Convert to fraction form
    80,852,678.70/121,284,266.85 = 42,588,926.70/x
  3. Step 3: Cross multiply
    80,852,678.70x = 121,284,266.85 × 42,588,926.70
  4. Step 4: Simplify right side
    80,852,678.70x = 5,165,366,750,737,890
  5. Step 5: Solve for x
    x = 5,165,366,750,737,890/80,852,678.70
  6. Step 6: Final answer
    x = 63,886,154.84

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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.