Home / 425,787,944.51-638,677,660.62-134,655,116.87

Finding the Fourth Proportional to 425,787,944.51, 638,677,660.62 and 134,655,116.87

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Solution

The fourth proportional to 425,787,944.51, 638,677,660.62 and 134,655,116.87 is: 201,981,329.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,787,944.51 : 638,677,660.62 = 134,655,116.87 : x
  2. Step 2: Convert to fraction form
    425,787,944.51/638,677,660.62 = 134,655,116.87/x
  3. Step 3: Cross multiply
    425,787,944.51x = 638,677,660.62 × 134,655,116.87
  4. Step 4: Simplify right side
    425,787,944.51x = 86,001,215,033,044,304
  5. Step 5: Solve for x
    x = 86,001,215,033,044,304/425,787,944.51
  6. Step 6: Final answer
    x = 201,981,329.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.