Home / 42,453,570-63,681,046.20-12,161,315.28

Finding the Fourth Proportional to 42,453,570, 63,681,046.20 and 12,161,315.28

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Solution

The fourth proportional to 42,453,570, 63,681,046.20 and 12,161,315.28 is: 18,242,170.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,453,570 : 63,681,046.20 = 12,161,315.28 : x
  2. Step 2: Convert to fraction form
    42,453,570/63,681,046.20 = 12,161,315.28/x
  3. Step 3: Cross multiply
    42,453,570x = 63,681,046.20 × 12,161,315.28
  4. Step 4: Simplify right side
    42,453,570x = 774,445,280,198,445.88
  5. Step 5: Solve for x
    x = 774,445,280,198,445.88/42,453,570
  6. Step 6: Final answer
    x = 18,242,170.92

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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.