Home / 1,011,421,192,551.20-1,517,220,976,951.90-285,358,876,685.45

Finding the Fourth Proportional to 1,011,421,192,551.20, 1,517,220,976,951.90 and 285,358,876,685.45

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Solution

The fourth proportional to 1,011,421,192,551.20, 1,517,220,976,951.90 and 285,358,876,685.45 is: 428,063,478,257.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011,421,192,551.20 : 1,517,220,976,951.90 = 285,358,876,685.45 : x
  2. Step 2: Convert to fraction form
    1,011,421,192,551.20/1,517,220,976,951.90 = 285,358,876,685.45/x
  3. Step 3: Cross multiply
    1,011,421,192,551.20x = 1,517,220,976,951.90 × 285,358,876,685.45
  4. Step 4: Simplify right side
    1,011,421,192,551.20x = 432,952,473,666,595,221,143,552
  5. Step 5: Solve for x
    x = 432,952,473,666,595,221,143,552/1,011,421,192,551.20
  6. Step 6: Final answer
    x = 428,063,478,257.28

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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.