Home / 42,408,642.40-63,612,963.60-15,145,719.10

Finding the Fourth Proportional to 42,408,642.40, 63,612,963.60 and 15,145,719.10

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Solution

The fourth proportional to 42,408,642.40, 63,612,963.60 and 15,145,719.10 is: 22,718,578.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,408,642.40 : 63,612,963.60 = 15,145,719.10 : x
  2. Step 2: Convert to fraction form
    42,408,642.40/63,612,963.60 = 15,145,719.10/x
  3. Step 3: Cross multiply
    42,408,642.40x = 63,612,963.60 × 15,145,719.10
  4. Step 4: Simplify right side
    42,408,642.40x = 963,464,077,804,124.75
  5. Step 5: Solve for x
    x = 963,464,077,804,124.75/42,408,642.40
  6. Step 6: Final answer
    x = 22,718,578.65

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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.