Home / 12,942,264.46-17,860,698.68-7,141,419.86

Finding the Fourth Proportional to 12,942,264.46, 17,860,698.68 and 7,141,419.86

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Solution

The fourth proportional to 12,942,264.46, 17,860,698.68 and 7,141,419.86 is: 9,855,365.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,942,264.46 : 17,860,698.68 = 7,141,419.86 : x
  2. Step 2: Convert to fraction form
    12,942,264.46/17,860,698.68 = 7,141,419.86/x
  3. Step 3: Cross multiply
    12,942,264.46x = 17,860,698.68 × 7,141,419.86
  4. Step 4: Simplify right side
    12,942,264.46x = 127,550,748,141,817.20
  5. Step 5: Solve for x
    x = 127,550,748,141,817.20/12,942,264.46
  6. Step 6: Final answer
    x = 9,855,365.62

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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.