Home / 13,133,975.28-18,123,693-7,331,689.32

Finding the Fourth Proportional to 13,133,975.28, 18,123,693 and 7,331,689.32

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Solution

The fourth proportional to 13,133,975.28, 18,123,693 and 7,331,689.32 is: 10,117,065.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,133,975.28 : 18,123,693 = 7,331,689.32 : x
  2. Step 2: Convert to fraction form
    13,133,975.28/18,123,693 = 7,331,689.32/x
  3. Step 3: Cross multiply
    13,133,975.28x = 18,123,693 × 7,331,689.32
  4. Step 4: Simplify right side
    13,133,975.28x = 132,877,286,407,058.77
  5. Step 5: Solve for x
    x = 132,877,286,407,058.77/13,133,975.28
  6. Step 6: Final answer
    x = 10,117,065.36

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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.