Home / 916,790,743.20-1,375,186,114.80-660,423,604.80

Finding the Fourth Proportional to 916,790,743.20, 1,375,186,114.80 and 660,423,604.80

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Solution

The fourth proportional to 916,790,743.20, 1,375,186,114.80 and 660,423,604.80 is: 990,635,407.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,790,743.20 : 1,375,186,114.80 = 660,423,604.80 : x
  2. Step 2: Convert to fraction form
    916,790,743.20/1,375,186,114.80 = 660,423,604.80/x
  3. Step 3: Cross multiply
    916,790,743.20x = 1,375,186,114.80 × 660,423,604.80
  4. Step 4: Simplify right side
    916,790,743.20x = 908,205,371,207,122,560
  5. Step 5: Solve for x
    x = 908,205,371,207,122,560/916,790,743.20
  6. Step 6: Final answer
    x = 990,635,407.20

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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.