Home / 15,178,415.31-20,942,856.86-9,299,291.67

Finding the Fourth Proportional to 15,178,415.31, 20,942,856.86 and 9,299,291.67

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Solution

The fourth proportional to 15,178,415.31, 20,942,856.86 and 9,299,291.67 is: 12,830,966.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,178,415.31 : 20,942,856.86 = 9,299,291.67 : x
  2. Step 2: Convert to fraction form
    15,178,415.31/20,942,856.86 = 9,299,291.67/x
  3. Step 3: Cross multiply
    15,178,415.31x = 20,942,856.86 × 9,299,291.67
  4. Step 4: Simplify right side
    15,178,415.31x = 194,753,734,297,703.91
  5. Step 5: Solve for x
    x = 194,753,734,297,703.91/15,178,415.31
  6. Step 6: Final answer
    x = 12,830,966.23

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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.