Home / 1,011,421,192,561.80-1,517,220,976,967.80-285,358,876,695.90

Finding the Fourth Proportional to 1,011,421,192,561.80, 1,517,220,976,967.80 and 285,358,876,695.90

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Solution

The fourth proportional to 1,011,421,192,561.80, 1,517,220,976,967.80 and 285,358,876,695.90 is: 428,063,478,272.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011,421,192,561.80 : 1,517,220,976,967.80 = 285,358,876,695.90 : x
  2. Step 2: Convert to fraction form
    1,011,421,192,561.80/1,517,220,976,967.80 = 285,358,876,695.90/x
  3. Step 3: Cross multiply
    1,011,421,192,561.80x = 1,517,220,976,967.80 × 285,358,876,695.90
  4. Step 4: Simplify right side
    1,011,421,192,561.80x = 432,952,473,686,987,457,429,504
  5. Step 5: Solve for x
    x = 432,952,473,686,987,457,429,504/1,011,421,192,561.80
  6. Step 6: Final answer
    x = 428,063,478,272.96

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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.