Home / 13,881,909.71-19,156,902.26-7,999,382.72

Finding the Fourth Proportional to 13,881,909.71, 19,156,902.26 and 7,999,382.72

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Solution

The fourth proportional to 13,881,909.71, 19,156,902.26 and 7,999,382.72 is: 11,039,071.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,881,909.71 : 19,156,902.26 = 7,999,382.72 : x
  2. Step 2: Convert to fraction form
    13,881,909.71/19,156,902.26 = 7,999,382.72/x
  3. Step 3: Cross multiply
    13,881,909.71x = 19,156,902.26 × 7,999,382.72
  4. Step 4: Simplify right side
    13,881,909.71x = 153,243,392,915,268.28
  5. Step 5: Solve for x
    x = 153,243,392,915,268.28/13,881,909.71
  6. Step 6: Final answer
    x = 11,039,071.43

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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.