Home / 910,689,746.60-1,256,752,256.06-493,002,018.38

Finding the Fourth Proportional to 910,689,746.60, 1,256,752,256.06 and 493,002,018.38

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Solution

The fourth proportional to 910,689,746.60, 1,256,752,256.06 and 493,002,018.38 is: 680,343,005.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,689,746.60 : 1,256,752,256.06 = 493,002,018.38 : x
  2. Step 2: Convert to fraction form
    910,689,746.60/1,256,752,256.06 = 493,002,018.38/x
  3. Step 3: Cross multiply
    910,689,746.60x = 1,256,752,256.06 × 493,002,018.38
  4. Step 4: Simplify right side
    910,689,746.60x = 619,581,398,841,198,592
  5. Step 5: Solve for x
    x = 619,581,398,841,198,592/910,689,746.60
  6. Step 6: Final answer
    x = 680,343,005.02

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1.5x scale

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.