Home / 40,442,138.80-60,663,208.20-11,689,212.40

Finding the Fourth Proportional to 40,442,138.80, 60,663,208.20 and 11,689,212.40

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Solution

The fourth proportional to 40,442,138.80, 60,663,208.20 and 11,689,212.40 is: 17,533,818.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,442,138.80 : 60,663,208.20 = 11,689,212.40 : x
  2. Step 2: Convert to fraction form
    40,442,138.80/60,663,208.20 = 11,689,212.40/x
  3. Step 3: Cross multiply
    40,442,138.80x = 60,663,208.20 × 11,689,212.40
  4. Step 4: Simplify right side
    40,442,138.80x = 709,105,125,515,221.75
  5. Step 5: Solve for x
    x = 709,105,125,515,221.75/40,442,138.80
  6. Step 6: Final answer
    x = 17,533,818.60

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Similar ratio
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1.5x scale

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.