Home / 86,959,064.57-120,061,294.83-66,806,169.39

Finding the Fourth Proportional to 86,959,064.57, 120,061,294.83 and 66,806,169.39

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Solution

The fourth proportional to 86,959,064.57, 120,061,294.83 and 66,806,169.39 is: 92,236,907.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,959,064.57 : 120,061,294.83 = 66,806,169.39 : x
  2. Step 2: Convert to fraction form
    86,959,064.57/120,061,294.83 = 66,806,169.39/x
  3. Step 3: Cross multiply
    86,959,064.57x = 120,061,294.83 × 66,806,169.39
  4. Step 4: Simplify right side
    86,959,064.57x = 8,020,835,199,595,711
  5. Step 5: Solve for x
    x = 8,020,835,199,595,711/86,959,064.57
  6. Step 6: Final answer
    x = 92,236,907.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.