Home / 21,174,870.90-31,748,367.84-13,964,419.38

Finding the Fourth Proportional to 21,174,870.90, 31,748,367.84 and 13,964,419.38

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Solution

The fourth proportional to 21,174,870.90, 31,748,367.84 and 13,964,419.38 is: 20,937,436.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,174,870.90 : 31,748,367.84 = 13,964,419.38 : x
  2. Step 2: Convert to fraction form
    21,174,870.90/31,748,367.84 = 13,964,419.38/x
  3. Step 3: Cross multiply
    21,174,870.90x = 31,748,367.84 × 13,964,419.38
  4. Step 4: Simplify right side
    21,174,870.90x = 443,347,523,148,264.75
  5. Step 5: Solve for x
    x = 443,347,523,148,264.75/21,174,870.90
  6. Step 6: Final answer
    x = 20,937,436.89

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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.