Home / 14,078,407.70-19,428,202.78-7,639,879.70

Finding the Fourth Proportional to 14,078,407.70, 19,428,202.78 and 7,639,879.70

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Solution

The fourth proportional to 14,078,407.70, 19,428,202.78 and 7,639,879.70 is: 10,543,034.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,078,407.70 : 19,428,202.78 = 7,639,879.70 : x
  2. Step 2: Convert to fraction form
    14,078,407.70/19,428,202.78 = 7,639,879.70/x
  3. Step 3: Cross multiply
    14,078,407.70x = 19,428,202.78 × 7,639,879.70
  4. Step 4: Simplify right side
    14,078,407.70x = 148,429,132,026,405.59
  5. Step 5: Solve for x
    x = 148,429,132,026,405.59/14,078,407.70
  6. Step 6: Final answer
    x = 10,543,034.07

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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.