Home / 140,534,772.80-193,944,047.06-77,810,871.95

Finding the Fourth Proportional to 140,534,772.80, 193,944,047.06 and 77,810,871.95

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Solution

The fourth proportional to 140,534,772.80, 193,944,047.06 and 77,810,871.95 is: 107,382,358.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,534,772.80 : 193,944,047.06 = 77,810,871.95 : x
  2. Step 2: Convert to fraction form
    140,534,772.80/193,944,047.06 = 77,810,871.95/x
  3. Step 3: Cross multiply
    140,534,772.80x = 193,944,047.06 × 77,810,871.95
  4. Step 4: Simplify right side
    140,534,772.80x = 15,090,955,411,250,434
  5. Step 5: Solve for x
    x = 15,090,955,411,250,434/140,534,772.80
  6. Step 6: Final answer
    x = 107,382,358.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.