Home / 910,689,747.10-1,256,752,256.75-493,002,018.88

Finding the Fourth Proportional to 910,689,747.10, 1,256,752,256.75 and 493,002,018.88

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Solution

The fourth proportional to 910,689,747.10, 1,256,752,256.75 and 493,002,018.88 is: 680,343,005.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,689,747.10 : 1,256,752,256.75 = 493,002,018.88 : x
  2. Step 2: Convert to fraction form
    910,689,747.10/1,256,752,256.75 = 493,002,018.88/x
  3. Step 3: Cross multiply
    910,689,747.10x = 1,256,752,256.75 × 493,002,018.88
  4. Step 4: Simplify right side
    910,689,747.10x = 619,581,399,809,746,048
  5. Step 5: Solve for x
    x = 619,581,399,809,746,048/910,689,747.10
  6. Step 6: Final answer
    x = 680,343,005.71

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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.