Home / 628,921,348.80-943,382,023.20-192,221,188.80

Finding the Fourth Proportional to 628,921,348.80, 943,382,023.20 and 192,221,188.80

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Solution

The fourth proportional to 628,921,348.80, 943,382,023.20 and 192,221,188.80 is: 288,331,783.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,921,348.80 : 943,382,023.20 = 192,221,188.80 : x
  2. Step 2: Convert to fraction form
    628,921,348.80/943,382,023.20 = 192,221,188.80/x
  3. Step 3: Cross multiply
    628,921,348.80x = 943,382,023.20 × 192,221,188.80
  4. Step 4: Simplify right side
    628,921,348.80x = 181,338,013,992,053,216
  5. Step 5: Solve for x
    x = 181,338,013,992,053,216/628,921,348.80
  6. Step 6: Final answer
    x = 288,331,783.20

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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.