Home / 20,816,180.40-31,224,270.60-13,248,577.20

Finding the Fourth Proportional to 20,816,180.40, 31,224,270.60 and 13,248,577.20

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Solution

The fourth proportional to 20,816,180.40, 31,224,270.60 and 13,248,577.20 is: 19,872,865.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,816,180.40 : 31,224,270.60 = 13,248,577.20 : x
  2. Step 2: Convert to fraction form
    20,816,180.40/31,224,270.60 = 13,248,577.20/x
  3. Step 3: Cross multiply
    20,816,180.40x = 31,224,270.60 × 13,248,577.20
  4. Step 4: Simplify right side
    20,816,180.40x = 413,677,159,557,790.31
  5. Step 5: Solve for x
    x = 413,677,159,557,790.31/20,816,180.40
  6. Step 6: Final answer
    x = 19,872,865.80

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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.