Home / 86,813,844,981.84-130,176,055,209.24-38,965,835,493.72

Finding the Fourth Proportional to 86,813,844,981.84, 130,176,055,209.24 and 38,965,835,493.72

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Solution

The fourth proportional to 86,813,844,981.84, 130,176,055,209.24 and 38,965,835,493.72 is: 58,428,684,428.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,813,844,981.84 : 130,176,055,209.24 = 38,965,835,493.72 : x
  2. Step 2: Convert to fraction form
    86,813,844,981.84/130,176,055,209.24 = 38,965,835,493.72/x
  3. Step 3: Cross multiply
    86,813,844,981.84x = 130,176,055,209.24 × 38,965,835,493.72
  4. Step 4: Simplify right side
    86,813,844,981.84x = 5,072,418,752,504,658,919,424
  5. Step 5: Solve for x
    x = 5,072,418,752,504,658,919,424/86,813,844,981.84
  6. Step 6: Final answer
    x = 58,428,684,428.91

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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.