Home / 20,739,775.57-31,111,158.03-7,960,280.27

Finding the Fourth Proportional to 20,739,775.57, 31,111,158.03 and 7,960,280.27

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Solution

The fourth proportional to 20,739,775.57, 31,111,158.03 and 7,960,280.27 is: 11,940,994.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,739,775.57 : 31,111,158.03 = 7,960,280.27 : x
  2. Step 2: Convert to fraction form
    20,739,775.57/31,111,158.03 = 7,960,280.27/x
  3. Step 3: Cross multiply
    20,739,775.57x = 31,111,158.03 × 7,960,280.27
  4. Step 4: Simplify right side
    20,739,775.57x = 247,653,537,443,061.06
  5. Step 5: Solve for x
    x = 247,653,537,443,061.06/20,739,775.57
  6. Step 6: Final answer
    x = 11,940,994.09

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1.5x scale

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.