Home / 20,174,041.42-30,258,819.20-7,219,669.30

Finding the Fourth Proportional to 20,174,041.42, 30,258,819.20 and 7,219,669.30

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Solution

The fourth proportional to 20,174,041.42, 30,258,819.20 and 7,219,669.30 is: 10,828,701.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,174,041.42 : 30,258,819.20 = 7,219,669.30 : x
  2. Step 2: Convert to fraction form
    20,174,041.42/30,258,819.20 = 7,219,669.30/x
  3. Step 3: Cross multiply
    20,174,041.42x = 30,258,819.20 × 7,219,669.30
  4. Step 4: Simplify right side
    20,174,041.42x = 218,458,668,032,490.56
  5. Step 5: Solve for x
    x = 218,458,668,032,490.56/20,174,041.42
  6. Step 6: Final answer
    x = 10,828,701.27

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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.