Home / 128,065,272.39-176,730,038.46-69,327,893.93

Finding the Fourth Proportional to 128,065,272.39, 176,730,038.46 and 69,327,893.93

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Solution

The fourth proportional to 128,065,272.39, 176,730,038.46 and 69,327,893.93 is: 95,672,473.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,065,272.39 : 176,730,038.46 = 69,327,893.93 : x
  2. Step 2: Convert to fraction form
    128,065,272.39/176,730,038.46 = 69,327,893.93/x
  3. Step 3: Cross multiply
    128,065,272.39x = 176,730,038.46 × 69,327,893.93
  4. Step 4: Simplify right side
    128,065,272.39x = 12,252,321,359,716,050
  5. Step 5: Solve for x
    x = 12,252,321,359,716,050/128,065,272.39
  6. Step 6: Final answer
    x = 95,672,473.35

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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.