Home / 128,259,898.89-176,993,918.59-69,521,302.87

Finding the Fourth Proportional to 128,259,898.89, 176,993,918.59 and 69,521,302.87

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Solution

The fourth proportional to 128,259,898.89, 176,993,918.59 and 69,521,302.87 is: 95,936,827.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,259,898.89 : 176,993,918.59 = 69,521,302.87 : x
  2. Step 2: Convert to fraction form
    128,259,898.89/176,993,918.59 = 69,521,302.87/x
  3. Step 3: Cross multiply
    128,259,898.89x = 176,993,918.59 × 69,521,302.87
  4. Step 4: Simplify right side
    128,259,898.89x = 12,304,847,820,443,514
  5. Step 5: Solve for x
    x = 12,304,847,820,443,514/128,259,898.89
  6. Step 6: Final answer
    x = 95,936,827.70

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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.