Home / 10,388,216.40-15,564,609.90-8,864,752.20

Finding the Fourth Proportional to 10,388,216.40, 15,564,609.90 and 8,864,752.20

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Solution

The fourth proportional to 10,388,216.40, 15,564,609.90 and 8,864,752.20 is: 13,282,011.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,388,216.40 : 15,564,609.90 = 8,864,752.20 : x
  2. Step 2: Convert to fraction form
    10,388,216.40/15,564,609.90 = 8,864,752.20/x
  3. Step 3: Cross multiply
    10,388,216.40x = 15,564,609.90 × 8,864,752.20
  4. Step 4: Simplify right side
    10,388,216.40x = 137,976,409,853,166.77
  5. Step 5: Solve for x
    x = 137,976,409,853,166.77/10,388,216.40
  6. Step 6: Final answer
    x = 13,282,011.52

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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.