Home / 85,536,049.90-128,192,100.45-34,376,190.70

Finding the Fourth Proportional to 85,536,049.90, 128,192,100.45 and 34,376,190.70

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Solution

The fourth proportional to 85,536,049.90, 128,192,100.45 and 34,376,190.70 is: 51,519,284.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,536,049.90 : 128,192,100.45 = 34,376,190.70 : x
  2. Step 2: Convert to fraction form
    85,536,049.90/128,192,100.45 = 34,376,190.70/x
  3. Step 3: Cross multiply
    85,536,049.90x = 128,192,100.45 × 34,376,190.70
  4. Step 4: Simplify right side
    85,536,049.90x = 4,406,756,091,302,756.50
  5. Step 5: Solve for x
    x = 4,406,756,091,302,756.50/85,536,049.90
  6. Step 6: Final answer
    x = 51,519,284.52

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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.