Home / 930,876,130.80-1,396,202,221.80-385,560,802.80

Finding the Fourth Proportional to 930,876,130.80, 1,396,202,221.80 and 385,560,802.80

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Solution

The fourth proportional to 930,876,130.80, 1,396,202,221.80 and 385,560,802.80 is: 578,294,825.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,876,130.80 : 1,396,202,221.80 = 385,560,802.80 : x
  2. Step 2: Convert to fraction form
    930,876,130.80/1,396,202,221.80 = 385,560,802.80/x
  3. Step 3: Cross multiply
    930,876,130.80x = 1,396,202,221.80 × 385,560,802.80
  4. Step 4: Simplify right side
    930,876,130.80x = 538,320,849,508,351,680
  5. Step 5: Solve for x
    x = 538,320,849,508,351,680/930,876,130.80
  6. Step 6: Final answer
    x = 578,294,825.38

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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.