Home / 12,138,981.18-16,751,598.52-6,632,237.76

Finding the Fourth Proportional to 12,138,981.18, 16,751,598.52 and 6,632,237.76

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Solution

The fourth proportional to 12,138,981.18, 16,751,598.52 and 6,632,237.76 is: 9,152,381.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,138,981.18 : 16,751,598.52 = 6,632,237.76 : x
  2. Step 2: Convert to fraction form
    12,138,981.18/16,751,598.52 = 6,632,237.76/x
  3. Step 3: Cross multiply
    12,138,981.18x = 16,751,598.52 × 6,632,237.76
  4. Step 4: Simplify right side
    12,138,981.18x = 111,100,584,290,942.02
  5. Step 5: Solve for x
    x = 111,100,584,290,942.02/12,138,981.18
  6. Step 6: Final answer
    x = 9,152,381.29

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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.