Home / 20,872,002.60-31,308,003.90-5,725,909.80

Finding the Fourth Proportional to 20,872,002.60, 31,308,003.90 and 5,725,909.80

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Solution

The fourth proportional to 20,872,002.60, 31,308,003.90 and 5,725,909.80 is: 8,588,864.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,872,002.60 : 31,308,003.90 = 5,725,909.80 : x
  2. Step 2: Convert to fraction form
    20,872,002.60/31,308,003.90 = 5,725,909.80/x
  3. Step 3: Cross multiply
    20,872,002.60x = 31,308,003.90 × 5,725,909.80
  4. Step 4: Simplify right side
    20,872,002.60x = 179,266,806,349,448.22
  5. Step 5: Solve for x
    x = 179,266,806,349,448.22/20,872,002.60
  6. Step 6: Final answer
    x = 8,588,864.70

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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.