Home / 66,498,825.20-99,811,223.40-40,989,657.20

Finding the Fourth Proportional to 66,498,825.20, 99,811,223.40 and 40,989,657.20

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Solution

The fourth proportional to 66,498,825.20, 99,811,223.40 and 40,989,657.20 is: 61,523,309.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,498,825.20 : 99,811,223.40 = 40,989,657.20 : x
  2. Step 2: Convert to fraction form
    66,498,825.20/99,811,223.40 = 40,989,657.20/x
  3. Step 3: Cross multiply
    66,498,825.20x = 99,811,223.40 × 40,989,657.20
  4. Step 4: Simplify right side
    66,498,825.20x = 4,091,227,831,878,619
  5. Step 5: Solve for x
    x = 4,091,227,831,878,619/66,498,825.20
  6. Step 6: Final answer
    x = 61,523,309.92

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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.