Home / 128,065,871.22-176,730,959.46-69,328,534.38

Finding the Fourth Proportional to 128,065,871.22, 176,730,959.46 and 69,328,534.38

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Solution

The fourth proportional to 128,065,871.22, 176,730,959.46 and 69,328,534.38 is: 95,673,408.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,065,871.22 : 176,730,959.46 = 69,328,534.38 : x
  2. Step 2: Convert to fraction form
    128,065,871.22/176,730,959.46 = 69,328,534.38/x
  3. Step 3: Cross multiply
    128,065,871.22x = 176,730,959.46 × 69,328,534.38
  4. Step 4: Simplify right side
    128,065,871.22x = 12,252,498,398,932,996
  5. Step 5: Solve for x
    x = 12,252,498,398,932,996/128,065,871.22
  6. Step 6: Final answer
    x = 95,673,408.40

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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.