Home / 12,402,711.79-18,606,551.04-6,945,567.21

Finding the Fourth Proportional to 12,402,711.79, 18,606,551.04 and 6,945,567.21

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Solution

The fourth proportional to 12,402,711.79, 18,606,551.04 and 6,945,567.21 is: 10,419,741.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,402,711.79 : 18,606,551.04 = 6,945,567.21 : x
  2. Step 2: Convert to fraction form
    12,402,711.79/18,606,551.04 = 6,945,567.21/x
  3. Step 3: Cross multiply
    12,402,711.79x = 18,606,551.04 × 6,945,567.21
  4. Step 4: Simplify right side
    12,402,711.79x = 129,233,050,794,615.39
  5. Step 5: Solve for x
    x = 129,233,050,794,615.39/12,402,711.79
  6. Step 6: Final answer
    x = 10,419,741.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.