Home / 3,087,642.88-4,638,562.56-2,178,918.40

Finding the Fourth Proportional to 3,087,642.88, 4,638,562.56 and 2,178,918.40

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Solution

The fourth proportional to 3,087,642.88, 4,638,562.56 and 2,178,918.40 is: 3,273,386.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,087,642.88 : 4,638,562.56 = 2,178,918.40 : x
  2. Step 2: Convert to fraction form
    3,087,642.88/4,638,562.56 = 2,178,918.40/x
  3. Step 3: Cross multiply
    3,087,642.88x = 4,638,562.56 × 2,178,918.40
  4. Step 4: Simplify right side
    3,087,642.88x = 10,107,049,311,535.10
  5. Step 5: Solve for x
    x = 10,107,049,311,535.10/3,087,642.88
  6. Step 6: Final answer
    x = 3,273,386.76

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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.