Home / 15,163,289.71-20,925,031.11-8,287,820.98

Finding the Fourth Proportional to 15,163,289.71, 20,925,031.11 and 8,287,820.98

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Solution

The fourth proportional to 15,163,289.71, 20,925,031.11 and 8,287,820.98 is: 11,437,024.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,163,289.71 : 20,925,031.11 = 8,287,820.98 : x
  2. Step 2: Convert to fraction form
    15,163,289.71/20,925,031.11 = 8,287,820.98/x
  3. Step 3: Cross multiply
    15,163,289.71x = 20,925,031.11 × 8,287,820.98
  4. Step 4: Simplify right side
    15,163,289.71x = 173,422,911,840,610.69
  5. Step 5: Solve for x
    x = 173,422,911,840,610.69/15,163,289.71
  6. Step 6: Final answer
    x = 11,437,024.23

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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.