Home / 20,148,169.32-30,219,301.31-9,910,281.03

Finding the Fourth Proportional to 20,148,169.32, 30,219,301.31 and 9,910,281.03

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Solution

The fourth proportional to 20,148,169.32, 30,219,301.31 and 9,910,281.03 is: 14,863,969.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,148,169.32 : 30,219,301.31 = 9,910,281.03 : x
  2. Step 2: Convert to fraction form
    20,148,169.32/30,219,301.31 = 9,910,281.03/x
  3. Step 3: Cross multiply
    20,148,169.32x = 30,219,301.31 × 9,910,281.03
  4. Step 4: Simplify right side
    20,148,169.32x = 299,481,768,462,795.75
  5. Step 5: Solve for x
    x = 299,481,768,462,795.75/20,148,169.32
  6. Step 6: Final answer
    x = 14,863,969.21

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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.