Home / 12,756,668.38-19,142,971.38-5,183,631.70

Finding the Fourth Proportional to 12,756,668.38, 19,142,971.38 and 5,183,631.70

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Solution

The fourth proportional to 12,756,668.38, 19,142,971.38 and 5,183,631.70 is: 7,778,685.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,756,668.38 : 19,142,971.38 = 5,183,631.70 : x
  2. Step 2: Convert to fraction form
    12,756,668.38/19,142,971.38 = 5,183,631.70/x
  3. Step 3: Cross multiply
    12,756,668.38x = 19,142,971.38 × 5,183,631.70
  4. Step 4: Simplify right side
    12,756,668.38x = 99,230,113,277,560.75
  5. Step 5: Solve for x
    x = 99,230,113,277,560.75/12,756,668.38
  6. Step 6: Final answer
    x = 7,778,685.65

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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.