Home / 9,665,285.90-13,338,144.18-5,314,652.78

Finding the Fourth Proportional to 9,665,285.90, 13,338,144.18 and 5,314,652.78

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Solution

The fourth proportional to 9,665,285.90, 13,338,144.18 and 5,314,652.78 is: 7,334,248.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,665,285.90 : 13,338,144.18 = 5,314,652.78 : x
  2. Step 2: Convert to fraction form
    9,665,285.90/13,338,144.18 = 5,314,652.78/x
  3. Step 3: Cross multiply
    9,665,285.90x = 13,338,144.18 × 5,314,652.78
  4. Step 4: Simplify right side
    9,665,285.90x = 70,887,604,979,587.11
  5. Step 5: Solve for x
    x = 70,887,604,979,587.11/9,665,285.90
  6. Step 6: Final answer
    x = 7,334,248.13

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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.