Home / 129,053,874.20-193,580,811.30-99,828,555.80

Finding the Fourth Proportional to 129,053,874.20, 193,580,811.30 and 99,828,555.80

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Solution

The fourth proportional to 129,053,874.20, 193,580,811.30 and 99,828,555.80 is: 149,742,833.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,053,874.20 : 193,580,811.30 = 99,828,555.80 : x
  2. Step 2: Convert to fraction form
    129,053,874.20/193,580,811.30 = 99,828,555.80/x
  3. Step 3: Cross multiply
    129,053,874.20x = 193,580,811.30 × 99,828,555.80
  4. Step 4: Simplify right side
    129,053,874.20x = 19,324,892,822,671,320
  5. Step 5: Solve for x
    x = 19,324,892,822,671,320/129,053,874.20
  6. Step 6: Final answer
    x = 149,742,833.70

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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.