Home / 25,347,891.40-38,021,837.10-21,148,851.40

Finding the Fourth Proportional to 25,347,891.40, 38,021,837.10 and 21,148,851.40

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Solution

The fourth proportional to 25,347,891.40, 38,021,837.10 and 21,148,851.40 is: 31,723,277.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,347,891.40 : 38,021,837.10 = 21,148,851.40 : x
  2. Step 2: Convert to fraction form
    25,347,891.40/38,021,837.10 = 21,148,851.40/x
  3. Step 3: Cross multiply
    25,347,891.40x = 38,021,837.10 × 21,148,851.40
  4. Step 4: Simplify right side
    25,347,891.40x = 804,118,182,782,906.88
  5. Step 5: Solve for x
    x = 804,118,182,782,906.88/25,347,891.40
  6. Step 6: Final answer
    x = 31,723,277.10

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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.