Home / 781,067,407.10-1,077,566,175.92-446,360,363.78

Finding the Fourth Proportional to 781,067,407.10, 1,077,566,175.92 and 446,360,363.78

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Solution

The fourth proportional to 781,067,407.10, 1,077,566,175.92 and 446,360,363.78 is: 615,801,947.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,067,407.10 : 1,077,566,175.92 = 446,360,363.78 : x
  2. Step 2: Convert to fraction form
    781,067,407.10/1,077,566,175.92 = 446,360,363.78/x
  3. Step 3: Cross multiply
    781,067,407.10x = 1,077,566,175.92 × 446,360,363.78
  4. Step 4: Simplify right side
    781,067,407.10x = 480,982,830,276,402,688
  5. Step 5: Solve for x
    x = 480,982,830,276,402,688/781,067,407.10
  6. Step 6: Final answer
    x = 615,801,947.32

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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.