Home / 14,920,117.40-20,588,920.45-8,394,021.92

Finding the Fourth Proportional to 14,920,117.40, 20,588,920.45 and 8,394,021.92

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Solution

The fourth proportional to 14,920,117.40, 20,588,920.45 and 8,394,021.92 is: 11,583,276.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,920,117.40 : 20,588,920.45 = 8,394,021.92 : x
  2. Step 2: Convert to fraction form
    14,920,117.40/20,588,920.45 = 8,394,021.92/x
  3. Step 3: Cross multiply
    14,920,117.40x = 20,588,920.45 × 8,394,021.92
  4. Step 4: Simplify right side
    14,920,117.40x = 172,823,849,442,506.59
  5. Step 5: Solve for x
    x = 172,823,849,442,506.59/14,920,117.40
  6. Step 6: Final answer
    x = 11,583,276.78

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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.