Home / 80,847,421.20-121,276,380.60-42,583,669.20

Finding the Fourth Proportional to 80,847,421.20, 121,276,380.60 and 42,583,669.20

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Solution

The fourth proportional to 80,847,421.20, 121,276,380.60 and 42,583,669.20 is: 63,878,268.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,847,421.20 : 121,276,380.60 = 42,583,669.20 : x
  2. Step 2: Convert to fraction form
    80,847,421.20/121,276,380.60 = 42,583,669.20/x
  3. Step 3: Cross multiply
    80,847,421.20x = 121,276,380.60 × 42,583,669.20
  4. Step 4: Simplify right side
    80,847,421.20x = 5,164,393,273,243,698
  5. Step 5: Solve for x
    x = 5,164,393,273,243,698/80,847,421.20
  6. Step 6: Final answer
    x = 63,878,268.43

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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.