Home / 85,536,090.40-128,192,161.20-34,376,231.20

Finding the Fourth Proportional to 85,536,090.40, 128,192,161.20 and 34,376,231.20

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Solution

The fourth proportional to 85,536,090.40, 128,192,161.20 and 34,376,231.20 is: 51,519,345.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,536,090.40 : 128,192,161.20 = 34,376,231.20 : x
  2. Step 2: Convert to fraction form
    85,536,090.40/128,192,161.20 = 34,376,231.20/x
  3. Step 3: Cross multiply
    85,536,090.40x = 128,192,161.20 × 34,376,231.20
  4. Step 4: Simplify right side
    85,536,090.40x = 4,406,763,371,438,870
  5. Step 5: Solve for x
    x = 4,406,763,371,438,870/85,536,090.40
  6. Step 6: Final answer
    x = 51,519,345.24

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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.