Home / 15,430,195.20-21,294,931.20-8,556,833.28

Finding the Fourth Proportional to 15,430,195.20, 21,294,931.20 and 8,556,833.28

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Solution

The fourth proportional to 15,430,195.20, 21,294,931.20 and 8,556,833.28 is: 11,809,129.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,430,195.20 : 21,294,931.20 = 8,556,833.28 : x
  2. Step 2: Convert to fraction form
    15,430,195.20/21,294,931.20 = 8,556,833.28/x
  3. Step 3: Cross multiply
    15,430,195.20x = 21,294,931.20 × 8,556,833.28
  4. Step 4: Simplify right side
    15,430,195.20x = 182,217,175,987,470.31
  5. Step 5: Solve for x
    x = 182,217,175,987,470.31/15,430,195.20
  6. Step 6: Final answer
    x = 11,809,129.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.