Home / 154,549,840.80-231,824,761.20-138,425,527.20

Finding the Fourth Proportional to 154,549,840.80, 231,824,761.20 and 138,425,527.20

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Solution

The fourth proportional to 154,549,840.80, 231,824,761.20 and 138,425,527.20 is: 207,638,290.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,549,840.80 : 231,824,761.20 = 138,425,527.20 : x
  2. Step 2: Convert to fraction form
    154,549,840.80/231,824,761.20 = 138,425,527.20/x
  3. Step 3: Cross multiply
    154,549,840.80x = 231,824,761.20 × 138,425,527.20
  4. Step 4: Simplify right side
    154,549,840.80x = 32,090,464,787,124,100
  5. Step 5: Solve for x
    x = 32,090,464,787,124,100/154,549,840.80
  6. Step 6: Final answer
    x = 207,638,290.80

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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.