Home / 66,486,862.20-99,793,278.90-40,977,694.20

Finding the Fourth Proportional to 66,486,862.20, 99,793,278.90 and 40,977,694.20

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Solution

The fourth proportional to 66,486,862.20, 99,793,278.90 and 40,977,694.20 is: 61,505,361.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,486,862.20 : 99,793,278.90 = 40,977,694.20 : x
  2. Step 2: Convert to fraction form
    66,486,862.20/99,793,278.90 = 40,977,694.20/x
  3. Step 3: Cross multiply
    66,486,862.20x = 99,793,278.90 × 40,977,694.20
  4. Step 4: Simplify right side
    66,486,862.20x = 4,089,298,465,979,513
  5. Step 5: Solve for x
    x = 4,089,298,465,979,513/66,486,862.20
  6. Step 6: Final answer
    x = 61,505,361.07

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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.