Home / 128,744,513.80-193,150,985.10-55,930,049.80

Finding the Fourth Proportional to 128,744,513.80, 193,150,985.10 and 55,930,049.80

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Solution

The fourth proportional to 128,744,513.80, 193,150,985.10 and 55,930,049.80 is: 83,909,938.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,744,513.80 : 193,150,985.10 = 55,930,049.80 : x
  2. Step 2: Convert to fraction form
    128,744,513.80/193,150,985.10 = 55,930,049.80/x
  3. Step 3: Cross multiply
    128,744,513.80x = 193,150,985.10 × 55,930,049.80
  4. Step 4: Simplify right side
    128,744,513.80x = 10,802,944,215,562,058
  5. Step 5: Solve for x
    x = 10,802,944,215,562,058/128,744,513.80
  6. Step 6: Final answer
    x = 83,909,938.35

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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.