Home / 80,248,387.52-120,334,642.30-31,087,268.32

Finding the Fourth Proportional to 80,248,387.52, 120,334,642.30 and 31,087,268.32

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Solution

The fourth proportional to 80,248,387.52, 120,334,642.30 and 31,087,268.32 is: 46,616,205.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,248,387.52 : 120,334,642.30 = 31,087,268.32 : x
  2. Step 2: Convert to fraction form
    80,248,387.52/120,334,642.30 = 31,087,268.32/x
  3. Step 3: Cross multiply
    80,248,387.52x = 120,334,642.30 × 31,087,268.32
  4. Step 4: Simplify right side
    80,248,387.52x = 3,740,875,313,371,322
  5. Step 5: Solve for x
    x = 3,740,875,313,371,322/80,248,387.52
  6. Step 6: Final answer
    x = 46,616,205.37

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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.