Home / 910,689,746.10-1,256,752,255.37-493,002,017.88

Finding the Fourth Proportional to 910,689,746.10, 1,256,752,255.37 and 493,002,017.88

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Solution

The fourth proportional to 910,689,746.10, 1,256,752,255.37 and 493,002,017.88 is: 680,343,004.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,689,746.10 : 1,256,752,255.37 = 493,002,017.88 : x
  2. Step 2: Convert to fraction form
    910,689,746.10/1,256,752,255.37 = 493,002,017.88/x
  3. Step 3: Cross multiply
    910,689,746.10x = 1,256,752,255.37 × 493,002,017.88
  4. Step 4: Simplify right side
    910,689,746.10x = 619,581,397,872,651,008
  5. Step 5: Solve for x
    x = 619,581,397,872,651,008/910,689,746.10
  6. Step 6: Final answer
    x = 680,343,004.33

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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.