Home / 20,112,341.70-30,168,512.55-7,342,011.30

Finding the Fourth Proportional to 20,112,341.70, 30,168,512.55 and 7,342,011.30

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Solution

The fourth proportional to 20,112,341.70, 30,168,512.55 and 7,342,011.30 is: 11,013,016.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,112,341.70 : 30,168,512.55 = 7,342,011.30 : x
  2. Step 2: Convert to fraction form
    20,112,341.70/30,168,512.55 = 7,342,011.30/x
  3. Step 3: Cross multiply
    20,112,341.70x = 30,168,512.55 × 7,342,011.30
  4. Step 4: Simplify right side
    20,112,341.70x = 221,497,560,046,291.81
  5. Step 5: Solve for x
    x = 221,497,560,046,291.81/20,112,341.70
  6. Step 6: Final answer
    x = 11,013,016.95

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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.