Home / 66,431,271.20-99,646,906.80-37,255,160.30

Finding the Fourth Proportional to 66,431,271.20, 99,646,906.80 and 37,255,160.30

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Solution

The fourth proportional to 66,431,271.20, 99,646,906.80 and 37,255,160.30 is: 55,882,740.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,431,271.20 : 99,646,906.80 = 37,255,160.30 : x
  2. Step 2: Convert to fraction form
    66,431,271.20/99,646,906.80 = 37,255,160.30/x
  3. Step 3: Cross multiply
    66,431,271.20x = 99,646,906.80 × 37,255,160.30
  4. Step 4: Simplify right side
    66,431,271.20x = 3,712,361,486,233,159.50
  5. Step 5: Solve for x
    x = 3,712,361,486,233,159.50/66,431,271.20
  6. Step 6: Final answer
    x = 55,882,740.45

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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.