Home / 7,021,339.20-9,689,576.40-3,964,982.40

Finding the Fourth Proportional to 7,021,339.20, 9,689,576.40 and 3,964,982.40

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Solution

The fourth proportional to 7,021,339.20, 9,689,576.40 and 3,964,982.40 is: 5,471,748.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,021,339.20 : 9,689,576.40 = 3,964,982.40 : x
  2. Step 2: Convert to fraction form
    7,021,339.20/9,689,576.40 = 3,964,982.40/x
  3. Step 3: Cross multiply
    7,021,339.20x = 9,689,576.40 × 3,964,982.40
  4. Step 4: Simplify right side
    7,021,339.20x = 38,418,999,889,455.36
  5. Step 5: Solve for x
    x = 38,418,999,889,455.36/7,021,339.20
  6. Step 6: Final answer
    x = 5,471,748.17

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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.