Home / 118,242,619.50-177,363,853.92-86,099,000.70

Finding the Fourth Proportional to 118,242,619.50, 177,363,853.92 and 86,099,000.70

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Solution

The fourth proportional to 118,242,619.50, 177,363,853.92 and 86,099,000.70 is: 129,148,446.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,242,619.50 : 177,363,853.92 = 86,099,000.70 : x
  2. Step 2: Convert to fraction form
    118,242,619.50/177,363,853.92 = 86,099,000.70/x
  3. Step 3: Cross multiply
    118,242,619.50x = 177,363,853.92 × 86,099,000.70
  4. Step 4: Simplify right side
    118,242,619.50x = 15,270,850,582,812,778
  5. Step 5: Solve for x
    x = 15,270,850,582,812,778/118,242,619.50
  6. Step 6: Final answer
    x = 129,148,446.20

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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.