Home / 15,315,304.49-21,139,201.40-9,041,348.24

Finding the Fourth Proportional to 15,315,304.49, 21,139,201.40 and 9,041,348.24

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Solution

The fourth proportional to 15,315,304.49, 21,139,201.40 and 9,041,348.24 is: 12,479,469.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,315,304.49 : 21,139,201.40 = 9,041,348.24 : x
  2. Step 2: Convert to fraction form
    15,315,304.49/21,139,201.40 = 9,041,348.24/x
  3. Step 3: Cross multiply
    15,315,304.49x = 21,139,201.40 × 9,041,348.24
  4. Step 4: Simplify right side
    15,315,304.49x = 191,126,881,372,895.53
  5. Step 5: Solve for x
    x = 191,126,881,372,895.53/15,315,304.49
  6. Step 6: Final answer
    x = 12,479,469.90

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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.