Home / 128,259,903.48-176,993,924.92-69,521,307.47

Finding the Fourth Proportional to 128,259,903.48, 176,993,924.92 and 69,521,307.47

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Solution

The fourth proportional to 128,259,903.48, 176,993,924.92 and 69,521,307.47 is: 95,936,834.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,259,903.48 : 176,993,924.92 = 69,521,307.47 : x
  2. Step 2: Convert to fraction form
    128,259,903.48/176,993,924.92 = 69,521,307.47/x
  3. Step 3: Cross multiply
    128,259,903.48x = 176,993,924.92 × 69,521,307.47
  4. Step 4: Simplify right side
    128,259,903.48x = 12,304,849,074,685,414
  5. Step 5: Solve for x
    x = 12,304,849,074,685,414/128,259,903.48
  6. Step 6: Final answer
    x = 95,936,834.04

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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.