Home / 20,112,332.70-30,168,499.05-7,342,002.30

Finding the Fourth Proportional to 20,112,332.70, 30,168,499.05 and 7,342,002.30

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Solution

The fourth proportional to 20,112,332.70, 30,168,499.05 and 7,342,002.30 is: 11,013,003.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,112,332.70 : 30,168,499.05 = 7,342,002.30 : x
  2. Step 2: Convert to fraction form
    20,112,332.70/30,168,499.05 = 7,342,002.30/x
  3. Step 3: Cross multiply
    20,112,332.70x = 30,168,499.05 × 7,342,002.30
  4. Step 4: Simplify right side
    20,112,332.70x = 221,497,189,412,647.81
  5. Step 5: Solve for x
    x = 221,497,189,412,647.81/20,112,332.70
  6. Step 6: Final answer
    x = 11,013,003.45

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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.