Home / 15,035,520.68-20,749,018.56-8,160,002.72

Finding the Fourth Proportional to 15,035,520.68, 20,749,018.56 and 8,160,002.72

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Solution

The fourth proportional to 15,035,520.68, 20,749,018.56 and 8,160,002.72 is: 11,260,803.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,035,520.68 : 20,749,018.56 = 8,160,002.72 : x
  2. Step 2: Convert to fraction form
    15,035,520.68/20,749,018.56 = 8,160,002.72/x
  3. Step 3: Cross multiply
    15,035,520.68x = 20,749,018.56 × 8,160,002.72
  4. Step 4: Simplify right side
    15,035,520.68x = 169,312,047,886,930.47
  5. Step 5: Solve for x
    x = 169,312,047,886,930.47/15,035,520.68
  6. Step 6: Final answer
    x = 11,260,803.77

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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.