Home / 15,003,868.86-20,697,728.85-9,487,948.68

Finding the Fourth Proportional to 15,003,868.86, 20,697,728.85 and 9,487,948.68

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Solution

The fourth proportional to 15,003,868.86, 20,697,728.85 and 9,487,948.68 is: 13,088,556.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,003,868.86 : 20,697,728.85 = 9,487,948.68 : x
  2. Step 2: Convert to fraction form
    15,003,868.86/20,697,728.85 = 9,487,948.68/x
  3. Step 3: Cross multiply
    15,003,868.86x = 20,697,728.85 × 9,487,948.68
  4. Step 4: Simplify right side
    15,003,868.86x = 196,378,989,121,355.44
  5. Step 5: Solve for x
    x = 196,378,989,121,355.44/15,003,868.86
  6. Step 6: Final answer
    x = 13,088,556.76

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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.