Home / 21,302,013.40-31,953,020.10-9,943,610.20

Finding the Fourth Proportional to 21,302,013.40, 31,953,020.10 and 9,943,610.20

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Solution

The fourth proportional to 21,302,013.40, 31,953,020.10 and 9,943,610.20 is: 14,915,415.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,302,013.40 : 31,953,020.10 = 9,943,610.20 : x
  2. Step 2: Convert to fraction form
    21,302,013.40/31,953,020.10 = 9,943,610.20/x
  3. Step 3: Cross multiply
    21,302,013.40x = 31,953,020.10 × 9,943,610.20
  4. Step 4: Simplify right side
    21,302,013.40x = 317,728,376,587,165
  5. Step 5: Solve for x
    x = 317,728,376,587,165/21,302,013.40
  6. Step 6: Final answer
    x = 14,915,415.30

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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.