Home / 10,553,778.40-15,783,428.40-8,853,167.20

Finding the Fourth Proportional to 10,553,778.40, 15,783,428.40 and 8,853,167.20

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Solution

The fourth proportional to 10,553,778.40, 15,783,428.40 and 8,853,167.20 is: 13,240,123.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,553,778.40 : 15,783,428.40 = 8,853,167.20 : x
  2. Step 2: Convert to fraction form
    10,553,778.40/15,783,428.40 = 8,853,167.20/x
  3. Step 3: Cross multiply
    10,553,778.40x = 15,783,428.40 × 8,853,167.20
  4. Step 4: Simplify right side
    10,553,778.40x = 139,733,330,614,428.47
  5. Step 5: Solve for x
    x = 139,733,330,614,428.47/10,553,778.40
  6. Step 6: Final answer
    x = 13,240,123.61

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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.