Home / 80,248,388.52-120,334,643.80-31,087,269.32

Finding the Fourth Proportional to 80,248,388.52, 120,334,643.80 and 31,087,269.32

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Solution

The fourth proportional to 80,248,388.52, 120,334,643.80 and 31,087,269.32 is: 46,616,206.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,248,388.52 : 120,334,643.80 = 31,087,269.32 : x
  2. Step 2: Convert to fraction form
    80,248,388.52/120,334,643.80 = 31,087,269.32/x
  3. Step 3: Cross multiply
    80,248,388.52x = 120,334,643.80 × 31,087,269.32
  4. Step 4: Simplify right side
    80,248,388.52x = 3,740,875,480,336,868
  5. Step 5: Solve for x
    x = 3,740,875,480,336,868/80,248,388.52
  6. Step 6: Final answer
    x = 46,616,206.87

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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.