Home / 96,787,809.20-145,181,713.80-86,206,228.40

Finding the Fourth Proportional to 96,787,809.20, 145,181,713.80 and 86,206,228.40

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Solution

The fourth proportional to 96,787,809.20, 145,181,713.80 and 86,206,228.40 is: 129,309,342.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,787,809.20 : 145,181,713.80 = 86,206,228.40 : x
  2. Step 2: Convert to fraction form
    96,787,809.20/145,181,713.80 = 86,206,228.40/x
  3. Step 3: Cross multiply
    96,787,809.20x = 145,181,713.80 × 86,206,228.40
  4. Step 4: Simplify right side
    96,787,809.20x = 12,515,567,979,346,234
  5. Step 5: Solve for x
    x = 12,515,567,979,346,234/96,787,809.20
  6. Step 6: Final answer
    x = 129,309,342.60

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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.