Home / 20,703,557.20-31,032,007.80-9,926,021.20

Finding the Fourth Proportional to 20,703,557.20, 31,032,007.80 and 9,926,021.20

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Solution

The fourth proportional to 20,703,557.20, 31,032,007.80 and 9,926,021.20 is: 14,877,847.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,703,557.20 : 31,032,007.80 = 9,926,021.20 : x
  2. Step 2: Convert to fraction form
    20,703,557.20/31,032,007.80 = 9,926,021.20/x
  3. Step 3: Cross multiply
    20,703,557.20x = 31,032,007.80 × 9,926,021.20
  4. Step 4: Simplify right side
    20,703,557.20x = 308,024,367,301,365.38
  5. Step 5: Solve for x
    x = 308,024,367,301,365.38/20,703,557.20
  6. Step 6: Final answer
    x = 14,877,847.53

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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.