Home / 84,992,142.80-127,488,214.20-67,986,030.80

Finding the Fourth Proportional to 84,992,142.80, 127,488,214.20 and 67,986,030.80

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Solution

The fourth proportional to 84,992,142.80, 127,488,214.20 and 67,986,030.80 is: 101,979,046.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,992,142.80 : 127,488,214.20 = 67,986,030.80 : x
  2. Step 2: Convert to fraction form
    84,992,142.80/127,488,214.20 = 67,986,030.80/x
  3. Step 3: Cross multiply
    84,992,142.80x = 127,488,214.20 × 67,986,030.80
  4. Step 4: Simplify right side
    84,992,142.80x = 8,667,417,657,238,197
  5. Step 5: Solve for x
    x = 8,667,417,657,238,197/84,992,142.80
  6. Step 6: Final answer
    x = 101,979,046.20

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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.