Home / 128,065,268.89-176,730,033.63-69,327,890.43

Finding the Fourth Proportional to 128,065,268.89, 176,730,033.63 and 69,327,890.43

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Solution

The fourth proportional to 128,065,268.89, 176,730,033.63 and 69,327,890.43 is: 95,672,468.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,065,268.89 : 176,730,033.63 = 69,327,890.43 : x
  2. Step 2: Convert to fraction form
    128,065,268.89/176,730,033.63 = 69,327,890.43/x
  3. Step 3: Cross multiply
    128,065,268.89x = 176,730,033.63 × 69,327,890.43
  4. Step 4: Simplify right side
    128,065,268.89x = 12,252,320,407,190,856
  5. Step 5: Solve for x
    x = 12,252,320,407,190,856/128,065,268.89
  6. Step 6: Final answer
    x = 95,672,468.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.