Home / 145,188,091.66-200,359,595.33-79,108,589.92

Finding the Fourth Proportional to 145,188,091.66, 200,359,595.33 and 79,108,589.92

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Solution

The fourth proportional to 145,188,091.66, 200,359,595.33 and 79,108,589.92 is: 109,169,869.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,188,091.66 : 200,359,595.33 = 79,108,589.92 : x
  2. Step 2: Convert to fraction form
    145,188,091.66/200,359,595.33 = 79,108,589.92/x
  3. Step 3: Cross multiply
    145,188,091.66x = 200,359,595.33 × 79,108,589.92
  4. Step 4: Simplify right side
    145,188,091.66x = 15,850,165,063,498,118
  5. Step 5: Solve for x
    x = 15,850,165,063,498,118/145,188,091.66
  6. Step 6: Final answer
    x = 109,169,869.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.