Home / 12,305,049.52-16,980,871.80-7,151,427.76

Finding the Fourth Proportional to 12,305,049.52, 16,980,871.80 and 7,151,427.76

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Solution

The fourth proportional to 12,305,049.52, 16,980,871.80 and 7,151,427.76 is: 9,868,914.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,305,049.52 : 16,980,871.80 = 7,151,427.76 : x
  2. Step 2: Convert to fraction form
    12,305,049.52/16,980,871.80 = 7,151,427.76/x
  3. Step 3: Cross multiply
    12,305,049.52x = 16,980,871.80 × 7,151,427.76
  4. Step 4: Simplify right side
    12,305,049.52x = 121,437,477,979,521.17
  5. Step 5: Solve for x
    x = 121,437,477,979,521.17/12,305,049.52
  6. Step 6: Final answer
    x = 9,868,914.20

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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.