Home / 12,965,470.29-17,892,343.08-7,164,201.28

Finding the Fourth Proportional to 12,965,470.29, 17,892,343.08 and 7,164,201.28

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Solution

The fourth proportional to 12,965,470.29, 17,892,343.08 and 7,164,201.28 is: 9,886,594.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,965,470.29 : 17,892,343.08 = 7,164,201.28 : x
  2. Step 2: Convert to fraction form
    12,965,470.29/17,892,343.08 = 7,164,201.28/x
  3. Step 3: Cross multiply
    12,965,470.29x = 17,892,343.08 × 7,164,201.28
  4. Step 4: Simplify right side
    12,965,470.29x = 128,184,347,195,935.14
  5. Step 5: Solve for x
    x = 128,184,347,195,935.14/12,965,470.29
  6. Step 6: Final answer
    x = 9,886,594.50

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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.