Home / 20,710,567.69-28,580,614.91-11,543,013.61

Finding the Fourth Proportional to 20,710,567.69, 28,580,614.91 and 11,543,013.61

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Solution

The fourth proportional to 20,710,567.69, 28,580,614.91 and 11,543,013.61 is: 15,929,376.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,710,567.69 : 28,580,614.91 = 11,543,013.61 : x
  2. Step 2: Convert to fraction form
    20,710,567.69/28,580,614.91 = 11,543,013.61/x
  3. Step 3: Cross multiply
    20,710,567.69x = 28,580,614.91 × 11,543,013.61
  4. Step 4: Simplify right side
    20,710,567.69x = 329,906,426,888,298.94
  5. Step 5: Solve for x
    x = 329,906,426,888,298.94/20,710,567.69
  6. Step 6: Final answer
    x = 15,929,376.34

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1.5x scale

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.