Home / 1,011,421,192,551.30-1,517,220,976,952.30-285,358,876,685.70

Finding the Fourth Proportional to 1,011,421,192,551.30, 1,517,220,976,952.30 and 285,358,876,685.70

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Solution

The fourth proportional to 1,011,421,192,551.30, 1,517,220,976,952.30 and 285,358,876,685.70 is: 428,063,478,257.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011,421,192,551.30 : 1,517,220,976,952.30 = 285,358,876,685.70 : x
  2. Step 2: Convert to fraction form
    1,011,421,192,551.30/1,517,220,976,952.30 = 285,358,876,685.70/x
  3. Step 3: Cross multiply
    1,011,421,192,551.30x = 1,517,220,976,952.30 × 285,358,876,685.70
  4. Step 4: Simplify right side
    1,011,421,192,551.30x = 432,952,473,667,088,672,620,544
  5. Step 5: Solve for x
    x = 432,952,473,667,088,672,620,544/1,011,421,192,551.30
  6. Step 6: Final answer
    x = 428,063,478,257.73

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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.