Home / 66,440,418.10-99,660,627.15-42,100,420.30

Finding the Fourth Proportional to 66,440,418.10, 99,660,627.15 and 42,100,420.30

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Solution

The fourth proportional to 66,440,418.10, 99,660,627.15 and 42,100,420.30 is: 63,150,630.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,440,418.10 : 99,660,627.15 = 42,100,420.30 : x
  2. Step 2: Convert to fraction form
    66,440,418.10/99,660,627.15 = 42,100,420.30/x
  3. Step 3: Cross multiply
    66,440,418.10x = 99,660,627.15 × 42,100,420.30
  4. Step 4: Simplify right side
    66,440,418.10x = 4,195,754,290,376,591
  5. Step 5: Solve for x
    x = 4,195,754,290,376,591/66,440,418.10
  6. Step 6: Final answer
    x = 63,150,630.45

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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.