Home / 21,352,406.60-32,028,609.90-7,886,448.20

Finding the Fourth Proportional to 21,352,406.60, 32,028,609.90 and 7,886,448.20

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Solution

The fourth proportional to 21,352,406.60, 32,028,609.90 and 7,886,448.20 is: 11,829,672.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,352,406.60 : 32,028,609.90 = 7,886,448.20 : x
  2. Step 2: Convert to fraction form
    21,352,406.60/32,028,609.90 = 7,886,448.20/x
  3. Step 3: Cross multiply
    21,352,406.60x = 32,028,609.90 × 7,886,448.20
  4. Step 4: Simplify right side
    21,352,406.60x = 252,591,972,894,357.19
  5. Step 5: Solve for x
    x = 252,591,972,894,357.19/21,352,406.60
  6. Step 6: Final answer
    x = 11,829,672.30

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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.