Home / 128,744,580.80-193,151,085.60-55,930,116.80

Finding the Fourth Proportional to 128,744,580.80, 193,151,085.60 and 55,930,116.80

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Solution

The fourth proportional to 128,744,580.80, 193,151,085.60 and 55,930,116.80 is: 83,910,038.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,744,580.80 : 193,151,085.60 = 55,930,116.80 : x
  2. Step 2: Convert to fraction form
    128,744,580.80/193,151,085.60 = 55,930,116.80/x
  3. Step 3: Cross multiply
    128,744,580.80x = 193,151,085.60 × 55,930,116.80
  4. Step 4: Simplify right side
    128,744,580.80x = 10,802,962,777,654,798
  5. Step 5: Solve for x
    x = 10,802,962,777,654,798/128,744,580.80
  6. Step 6: Final answer
    x = 83,910,038.86

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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.