Home / 910,689,781.98-1,256,752,304.88-493,002,053.76

Finding the Fourth Proportional to 910,689,781.98, 1,256,752,304.88 and 493,002,053.76

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Solution

The fourth proportional to 910,689,781.98, 1,256,752,304.88 and 493,002,053.76 is: 680,343,053.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,689,781.98 : 1,256,752,304.88 = 493,002,053.76 : x
  2. Step 2: Convert to fraction form
    910,689,781.98/1,256,752,304.88 = 493,002,053.76/x
  3. Step 3: Cross multiply
    910,689,781.98x = 1,256,752,304.88 × 493,002,053.76
  4. Step 4: Simplify right side
    910,689,781.98x = 619,581,467,373,453,696
  5. Step 5: Solve for x
    x = 619,581,467,373,453,696/910,689,781.98
  6. Step 6: Final answer
    x = 680,343,053.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.