Home / 1,011,421,192,556.40-1,517,220,976,959.90-285,358,876,690.70

Finding the Fourth Proportional to 1,011,421,192,556.40, 1,517,220,976,959.90 and 285,358,876,690.70

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Solution

The fourth proportional to 1,011,421,192,556.40, 1,517,220,976,959.90 and 285,358,876,690.70 is: 428,063,478,265.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011,421,192,556.40 : 1,517,220,976,959.90 = 285,358,876,690.70 : x
  2. Step 2: Convert to fraction form
    1,011,421,192,556.40/1,517,220,976,959.90 = 285,358,876,690.70/x
  3. Step 3: Cross multiply
    1,011,421,192,556.40x = 1,517,220,976,959.90 × 285,358,876,690.70
  4. Step 4: Simplify right side
    1,011,421,192,556.40x = 432,952,473,676,843,482,873,856
  5. Step 5: Solve for x
    x = 432,952,473,676,843,482,873,856/1,011,421,192,556.40
  6. Step 6: Final answer
    x = 428,063,478,265.21

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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.