Home / 628,921,352.80-943,382,029.20-192,221,192.80

Finding the Fourth Proportional to 628,921,352.80, 943,382,029.20 and 192,221,192.80

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Solution

The fourth proportional to 628,921,352.80, 943,382,029.20 and 192,221,192.80 is: 288,331,789.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,921,352.80 : 943,382,029.20 = 192,221,192.80 : x
  2. Step 2: Convert to fraction form
    628,921,352.80/943,382,029.20 = 192,221,192.80/x
  3. Step 3: Cross multiply
    628,921,352.80x = 943,382,029.20 × 192,221,192.80
  4. Step 4: Simplify right side
    628,921,352.80x = 181,338,018,918,908,448
  5. Step 5: Solve for x
    x = 181,338,018,918,908,448/628,921,352.80
  6. Step 6: Final answer
    x = 288,331,789.20

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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.