Home / 128,941,806.80-193,412,710.20-43,841,262.80

Finding the Fourth Proportional to 128,941,806.80, 193,412,710.20 and 43,841,262.80

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Solution

The fourth proportional to 128,941,806.80, 193,412,710.20 and 43,841,262.80 is: 65,761,894.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,941,806.80 : 193,412,710.20 = 43,841,262.80 : x
  2. Step 2: Convert to fraction form
    128,941,806.80/193,412,710.20 = 43,841,262.80/x
  3. Step 3: Cross multiply
    128,941,806.80x = 193,412,710.20 × 43,841,262.80
  4. Step 4: Simplify right side
    128,941,806.80x = 8,479,457,456,738,439
  5. Step 5: Solve for x
    x = 8,479,457,456,738,439/128,941,806.80
  6. Step 6: Final answer
    x = 65,761,894.20

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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.