Home / 658,609,605-986,597,264.88-396,149,240.39

Finding the Fourth Proportional to 658,609,605, 986,597,264.88 and 396,149,240.39

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Solution

The fourth proportional to 658,609,605, 986,597,264.88 and 396,149,240.39 is: 593,431,608.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,609,605 : 986,597,264.88 = 396,149,240.39 : x
  2. Step 2: Convert to fraction form
    658,609,605/986,597,264.88 = 396,149,240.39/x
  3. Step 3: Cross multiply
    658,609,605x = 986,597,264.88 × 396,149,240.39
  4. Step 4: Simplify right side
    658,609,605x = 390,839,757,048,130,624
  5. Step 5: Solve for x
    x = 390,839,757,048,130,624/658,609,605
  6. Step 6: Final answer
    x = 593,431,608.17

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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.