Home / 28,472,228.30-39,291,189.54-15,419,381.24

Finding the Fourth Proportional to 28,472,228.30, 39,291,189.54 and 15,419,381.24

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Solution

The fourth proportional to 28,472,228.30, 39,291,189.54 and 15,419,381.24 is: 21,278,483.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,472,228.30 : 39,291,189.54 = 15,419,381.24 : x
  2. Step 2: Convert to fraction form
    28,472,228.30/39,291,189.54 = 15,419,381.24/x
  3. Step 3: Cross multiply
    28,472,228.30x = 39,291,189.54 × 15,419,381.24
  4. Step 4: Simplify right side
    28,472,228.30x = 605,845,830,890,360.25
  5. Step 5: Solve for x
    x = 605,845,830,890,360.25/28,472,228.30
  6. Step 6: Final answer
    x = 21,278,483.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.