Home / 626,680,754.87-864,459,248.85-391,322,852.15

Finding the Fourth Proportional to 626,680,754.87, 864,459,248.85 and 391,322,852.15

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Solution

The fourth proportional to 626,680,754.87, 864,459,248.85 and 391,322,852.15 is: 539,800,618.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,680,754.87 : 864,459,248.85 = 391,322,852.15 : x
  2. Step 2: Convert to fraction form
    626,680,754.87/864,459,248.85 = 391,322,852.15/x
  3. Step 3: Cross multiply
    626,680,754.87x = 864,459,248.85 × 391,322,852.15
  4. Step 4: Simplify right side
    626,680,754.87x = 338,282,658,823,106,304
  5. Step 5: Solve for x
    x = 338,282,658,823,106,304/626,680,754.87
  6. Step 6: Final answer
    x = 539,800,618.09

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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.