Home / 20,736,005.40-31,104,008.10-14,689,387.80

Finding the Fourth Proportional to 20,736,005.40, 31,104,008.10 and 14,689,387.80

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Solution

The fourth proportional to 20,736,005.40, 31,104,008.10 and 14,689,387.80 is: 22,034,081.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,005.40 : 31,104,008.10 = 14,689,387.80 : x
  2. Step 2: Convert to fraction form
    20,736,005.40/31,104,008.10 = 14,689,387.80/x
  3. Step 3: Cross multiply
    20,736,005.40x = 31,104,008.10 × 14,689,387.80
  4. Step 4: Simplify right side
    20,736,005.40x = 456,898,837,115,241.25
  5. Step 5: Solve for x
    x = 456,898,837,115,241.25/20,736,005.40
  6. Step 6: Final answer
    x = 22,034,081.70

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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.