Home / 42,408,643.40-63,612,965.10-15,145,720.10

Finding the Fourth Proportional to 42,408,643.40, 63,612,965.10 and 15,145,720.10

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Solution

The fourth proportional to 42,408,643.40, 63,612,965.10 and 15,145,720.10 is: 22,718,580.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,408,643.40 : 63,612,965.10 = 15,145,720.10 : x
  2. Step 2: Convert to fraction form
    42,408,643.40/63,612,965.10 = 15,145,720.10/x
  3. Step 3: Cross multiply
    42,408,643.40x = 63,612,965.10 × 15,145,720.10
  4. Step 4: Simplify right side
    42,408,643.40x = 963,464,164,135,668.50
  5. Step 5: Solve for x
    x = 963,464,164,135,668.50/42,408,643.40
  6. Step 6: Final answer
    x = 22,718,580.15

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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.