Home / 20,072,152.20-30,243,163.80-18,155,200.56

Finding the Fourth Proportional to 20,072,152.20, 30,243,163.80 and 18,155,200.56

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Solution

The fourth proportional to 20,072,152.20, 30,243,163.80 and 18,155,200.56 is: 27,354,849.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,072,152.20 : 30,243,163.80 = 18,155,200.56 : x
  2. Step 2: Convert to fraction form
    20,072,152.20/30,243,163.80 = 18,155,200.56/x
  3. Step 3: Cross multiply
    20,072,152.20x = 30,243,163.80 × 18,155,200.56
  4. Step 4: Simplify right side
    20,072,152.20x = 549,070,704,357,931.69
  5. Step 5: Solve for x
    x = 549,070,704,357,931.69/20,072,152.20
  6. Step 6: Final answer
    x = 27,354,849.59

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.