Home / 1,011,421,192,551.70-1,517,220,976,953-285,358,876,686

Finding the Fourth Proportional to 1,011,421,192,551.70, 1,517,220,976,953 and 285,358,876,686

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Solution

The fourth proportional to 1,011,421,192,551.70, 1,517,220,976,953 and 285,358,876,686 is: 428,063,478,258.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011,421,192,551.70 : 1,517,220,976,953 = 285,358,876,686 : x
  2. Step 2: Convert to fraction form
    1,011,421,192,551.70/1,517,220,976,953 = 285,358,876,686/x
  3. Step 3: Cross multiply
    1,011,421,192,551.70x = 1,517,220,976,953 × 285,358,876,686
  4. Step 4: Simplify right side
    1,011,421,192,551.70x = 432,952,473,667,743,588,024,320
  5. Step 5: Solve for x
    x = 432,952,473,667,743,588,024,320/1,011,421,192,551.70
  6. Step 6: Final answer
    x = 428,063,478,258.21

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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.