Home / 145,156,739.40-218,059,512.30-121,268,867.40

Finding the Fourth Proportional to 145,156,739.40, 218,059,512.30 and 121,268,867.40

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Solution

The fourth proportional to 145,156,739.40, 218,059,512.30 and 121,268,867.40 is: 182,174,318.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,156,739.40 : 218,059,512.30 = 121,268,867.40 : x
  2. Step 2: Convert to fraction form
    145,156,739.40/218,059,512.30 = 121,268,867.40/x
  3. Step 3: Cross multiply
    145,156,739.40x = 218,059,512.30 × 121,268,867.40
  4. Step 4: Simplify right side
    145,156,739.40x = 26,443,830,082,417,372
  5. Step 5: Solve for x
    x = 26,443,830,082,417,372/145,156,739.40
  6. Step 6: Final answer
    x = 182,174,318.55

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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.