Home / 265,718,489.80-398,640,720.30-136,346,067.40

Finding the Fourth Proportional to 265,718,489.80, 398,640,720.30 and 136,346,067.40

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Solution

The fourth proportional to 265,718,489.80, 398,640,720.30 and 136,346,067.40 is: 204,551,420.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,718,489.80 : 398,640,720.30 = 136,346,067.40 : x
  2. Step 2: Convert to fraction form
    265,718,489.80/398,640,720.30 = 136,346,067.40/x
  3. Step 3: Cross multiply
    265,718,489.80x = 398,640,720.30 × 136,346,067.40
  4. Step 4: Simplify right side
    265,718,489.80x = 54,353,094,518,408,352
  5. Step 5: Solve for x
    x = 54,353,094,518,408,352/265,718,489.80
  6. Step 6: Final answer
    x = 204,551,420.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.