Home / 112,663,942.65-168,704,864.39-77,756,769.54

Finding the Fourth Proportional to 112,663,942.65, 168,704,864.39 and 77,756,769.54

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Solution

The fourth proportional to 112,663,942.65, 168,704,864.39 and 77,756,769.54 is: 116,434,281.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,663,942.65 : 168,704,864.39 = 77,756,769.54 : x
  2. Step 2: Convert to fraction form
    112,663,942.65/168,704,864.39 = 77,756,769.54/x
  3. Step 3: Cross multiply
    112,663,942.65x = 168,704,864.39 × 77,756,769.54
  4. Step 4: Simplify right side
    112,663,942.65x = 13,117,945,260,261,400
  5. Step 5: Solve for x
    x = 13,117,945,260,261,400/112,663,942.65
  6. Step 6: Final answer
    x = 116,434,281.92

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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.