Home / 20,872,888.68-31,310,317.18-17,222,848.56

Finding the Fourth Proportional to 20,872,888.68, 31,310,317.18 and 17,222,848.56

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Solution

The fourth proportional to 20,872,888.68, 31,310,317.18 and 17,222,848.56 is: 25,835,084.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,872,888.68 : 31,310,317.18 = 17,222,848.56 : x
  2. Step 2: Convert to fraction form
    20,872,888.68/31,310,317.18 = 17,222,848.56/x
  3. Step 3: Cross multiply
    20,872,888.68x = 31,310,317.18 × 17,222,848.56
  4. Step 4: Simplify right side
    20,872,888.68x = 539,252,851,070,592
  5. Step 5: Solve for x
    x = 539,252,851,070,592/20,872,888.68
  6. Step 6: Final answer
    x = 25,835,084.89

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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.