Home / 409,387,645.80-612,806,010.30-294,596,389.80

Finding the Fourth Proportional to 409,387,645.80, 612,806,010.30 and 294,596,389.80

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Solution

The fourth proportional to 409,387,645.80, 612,806,010.30 and 294,596,389.80 is: 440,976,761.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,387,645.80 : 612,806,010.30 = 294,596,389.80 : x
  2. Step 2: Convert to fraction form
    409,387,645.80/612,806,010.30 = 294,596,389.80/x
  3. Step 3: Cross multiply
    409,387,645.80x = 612,806,010.30 × 294,596,389.80
  4. Step 4: Simplify right side
    409,387,645.80x = 180,530,438,282,121,600
  5. Step 5: Solve for x
    x = 180,530,438,282,121,600/409,387,645.80
  6. Step 6: Final answer
    x = 440,976,761.60

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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.