Home / 161,705,371.40-242,568,554.70-85,177,867.40

Finding the Fourth Proportional to 161,705,371.40, 242,568,554.70 and 85,177,867.40

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Solution

The fourth proportional to 161,705,371.40, 242,568,554.70 and 85,177,867.40 is: 127,772,330.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,705,371.40 : 242,568,554.70 = 85,177,867.40 : x
  2. Step 2: Convert to fraction form
    161,705,371.40/242,568,554.70 = 85,177,867.40/x
  3. Step 3: Cross multiply
    161,705,371.40x = 242,568,554.70 × 85,177,867.40
  4. Step 4: Simplify right side
    161,705,371.40x = 20,661,472,187,646,248
  5. Step 5: Solve for x
    x = 20,661,472,187,646,248/161,705,371.40
  6. Step 6: Final answer
    x = 127,772,330.68

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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.