Home / 12,956,453.76-17,880,189.12-7,155,223.68

Finding the Fourth Proportional to 12,956,453.76, 17,880,189.12 and 7,155,223.68

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Solution

The fourth proportional to 12,956,453.76, 17,880,189.12 and 7,155,223.68 is: 9,874,364.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,956,453.76 : 17,880,189.12 = 7,155,223.68 : x
  2. Step 2: Convert to fraction form
    12,956,453.76/17,880,189.12 = 7,155,223.68/x
  3. Step 3: Cross multiply
    12,956,453.76x = 17,880,189.12 × 7,155,223.68
  4. Step 4: Simplify right side
    12,956,453.76x = 127,936,752,594,302.36
  5. Step 5: Solve for x
    x = 127,936,752,594,302.36/12,956,453.76
  6. Step 6: Final answer
    x = 9,874,364.93

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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.