Home / 13,537,072-18,681,159.36-7,425,515.12

Finding the Fourth Proportional to 13,537,072, 18,681,159.36 and 7,425,515.12

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Solution

The fourth proportional to 13,537,072, 18,681,159.36 and 7,425,515.12 is: 10,247,210.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,537,072 : 18,681,159.36 = 7,425,515.12 : x
  2. Step 2: Convert to fraction form
    13,537,072/18,681,159.36 = 7,425,515.12/x
  3. Step 3: Cross multiply
    13,537,072x = 18,681,159.36 × 7,425,515.12
  4. Step 4: Simplify right side
    13,537,072x = 138,717,231,286,809.52
  5. Step 5: Solve for x
    x = 138,717,231,286,809.52/13,537,072
  6. Step 6: Final answer
    x = 10,247,210.87

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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.