Home / 128,736,003.40-193,104,005.10-127,541,609.80

Finding the Fourth Proportional to 128,736,003.40, 193,104,005.10 and 127,541,609.80

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Solution

The fourth proportional to 128,736,003.40, 193,104,005.10 and 127,541,609.80 is: 191,312,414.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,736,003.40 : 193,104,005.10 = 127,541,609.80 : x
  2. Step 2: Convert to fraction form
    128,736,003.40/193,104,005.10 = 127,541,609.80/x
  3. Step 3: Cross multiply
    128,736,003.40x = 193,104,005.10 × 127,541,609.80
  4. Step 4: Simplify right side
    128,736,003.40x = 24,628,795,669,281,408
  5. Step 5: Solve for x
    x = 24,628,795,669,281,408/128,736,003.40
  6. Step 6: Final answer
    x = 191,312,414.70

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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.