Home / 10,003,125.78-15,003,117.68-3,178,800.05

Finding the Fourth Proportional to 10,003,125.78, 15,003,117.68 and 3,178,800.05

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Solution

The fourth proportional to 10,003,125.78, 15,003,117.68 and 3,178,800.05 is: 4,767,700.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,003,125.78 : 15,003,117.68 = 3,178,800.05 : x
  2. Step 2: Convert to fraction form
    10,003,125.78/15,003,117.68 = 3,178,800.05/x
  3. Step 3: Cross multiply
    10,003,125.78x = 15,003,117.68 × 3,178,800.05
  4. Step 4: Simplify right side
    10,003,125.78x = 47,691,911,140,430.30
  5. Step 5: Solve for x
    x = 47,691,911,140,430.30/10,003,125.78
  6. Step 6: Final answer
    x = 4,767,700.84

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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.