Home / 8,979,896.68-12,392,268.66-5,112,417.76

Finding the Fourth Proportional to 8,979,896.68, 12,392,268.66 and 5,112,417.76

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Solution

The fourth proportional to 8,979,896.68, 12,392,268.66 and 5,112,417.76 is: 7,055,142.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,979,896.68 : 12,392,268.66 = 5,112,417.76 : x
  2. Step 2: Convert to fraction form
    8,979,896.68/12,392,268.66 = 5,112,417.76/x
  3. Step 3: Cross multiply
    8,979,896.68x = 12,392,268.66 × 5,112,417.76
  4. Step 4: Simplify right side
    8,979,896.68x = 63,354,454,384,075.40
  5. Step 5: Solve for x
    x = 63,354,454,384,075.40/8,979,896.68
  6. Step 6: Final answer
    x = 7,055,142.91

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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.