Home / 13,702,148.82-18,908,078.94-7,507,186.92

Finding the Fourth Proportional to 13,702,148.82, 18,908,078.94 and 7,507,186.92

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Solution

The fourth proportional to 13,702,148.82, 18,908,078.94 and 7,507,186.92 is: 10,359,432.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,702,148.82 : 18,908,078.94 = 7,507,186.92 : x
  2. Step 2: Convert to fraction form
    13,702,148.82/18,908,078.94 = 7,507,186.92/x
  3. Step 3: Cross multiply
    13,702,148.82x = 18,908,078.94 × 7,507,186.92
  4. Step 4: Simplify right side
    13,702,148.82x = 141,946,482,900,695.47
  5. Step 5: Solve for x
    x = 141,946,482,900,695.47/13,702,148.82
  6. Step 6: Final answer
    x = 10,359,432.29

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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.