Home / 161,697,813.40-242,557,217.70-85,170,309.40

Finding the Fourth Proportional to 161,697,813.40, 242,557,217.70 and 85,170,309.40

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Solution

The fourth proportional to 161,697,813.40, 242,557,217.70 and 85,170,309.40 is: 127,760,993.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,697,813.40 : 242,557,217.70 = 85,170,309.40 : x
  2. Step 2: Convert to fraction form
    161,697,813.40/242,557,217.70 = 85,170,309.40/x
  3. Step 3: Cross multiply
    161,697,813.40x = 242,557,217.70 × 85,170,309.40
  4. Step 4: Simplify right side
    161,697,813.40x = 20,658,673,278,712,156
  5. Step 5: Solve for x
    x = 20,658,673,278,712,156/161,697,813.40
  6. Step 6: Final answer
    x = 127,760,993.45

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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.