Home / 80,248,651.80-120,335,032.07-31,087,530.84

Finding the Fourth Proportional to 80,248,651.80, 120,335,032.07 and 31,087,530.84

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Solution

The fourth proportional to 80,248,651.80, 120,335,032.07 and 31,087,530.84 is: 46,616,596.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,248,651.80 : 120,335,032.07 = 31,087,530.84 : x
  2. Step 2: Convert to fraction form
    80,248,651.80/120,335,032.07 = 31,087,530.84/x
  3. Step 3: Cross multiply
    80,248,651.80x = 120,335,032.07 × 31,087,530.84
  4. Step 4: Simplify right side
    80,248,651.80x = 3,740,919,020,569,654.50
  5. Step 5: Solve for x
    x = 3,740,919,020,569,654.50/80,248,651.80
  6. Step 6: Final answer
    x = 46,616,596.50

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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.