Home / 128,006,974.02-176,650,089.48-69,269,633.04

Finding the Fourth Proportional to 128,006,974.02, 176,650,089.48 and 69,269,633.04

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Solution

The fourth proportional to 128,006,974.02, 176,650,089.48 and 69,269,633.04 is: 95,592,345.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,006,974.02 : 176,650,089.48 = 69,269,633.04 : x
  2. Step 2: Convert to fraction form
    128,006,974.02/176,650,089.48 = 69,269,633.04/x
  3. Step 3: Cross multiply
    128,006,974.02x = 176,650,089.48 × 69,269,633.04
  4. Step 4: Simplify right side
    128,006,974.02x = 12,236,486,874,762,764
  5. Step 5: Solve for x
    x = 12,236,486,874,762,764/128,006,974.02
  6. Step 6: Final answer
    x = 95,592,345.40

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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.