Home / 14,078,409.20-19,428,204.85-7,639,881.20

Finding the Fourth Proportional to 14,078,409.20, 19,428,204.85 and 7,639,881.20

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Solution

The fourth proportional to 14,078,409.20, 19,428,204.85 and 7,639,881.20 is: 10,543,036.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,078,409.20 : 19,428,204.85 = 7,639,881.20 : x
  2. Step 2: Convert to fraction form
    14,078,409.20/19,428,204.85 = 7,639,881.20/x
  3. Step 3: Cross multiply
    14,078,409.20x = 19,428,204.85 × 7,639,881.20
  4. Step 4: Simplify right side
    14,078,409.20x = 148,429,176,867,023.09
  5. Step 5: Solve for x
    x = 148,429,176,867,023.09/14,078,409.20
  6. Step 6: Final answer
    x = 10,543,036.14

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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.