Home / 1,011,421,192,557.20-1,517,220,976,961.10-285,358,876,691.40

Finding the Fourth Proportional to 1,011,421,192,557.20, 1,517,220,976,961.10 and 285,358,876,691.40

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Solution

The fourth proportional to 1,011,421,192,557.20, 1,517,220,976,961.10 and 285,358,876,691.40 is: 428,063,478,266.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011,421,192,557.20 : 1,517,220,976,961.10 = 285,358,876,691.40 : x
  2. Step 2: Convert to fraction form
    1,011,421,192,557.20/1,517,220,976,961.10 = 285,358,876,691.40/x
  3. Step 3: Cross multiply
    1,011,421,192,557.20x = 1,517,220,976,961.10 × 285,358,876,691.40
  4. Step 4: Simplify right side
    1,011,421,192,557.20x = 432,952,473,678,248,071,397,376
  5. Step 5: Solve for x
    x = 432,952,473,678,248,071,397,376/1,011,421,192,557.20
  6. Step 6: Final answer
    x = 428,063,478,266.26

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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.