Home / 309,142,276.46-426,619,637.30-168,013,496.14

Finding the Fourth Proportional to 309,142,276.46, 426,619,637.30 and 168,013,496.14

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Solution

The fourth proportional to 309,142,276.46, 426,619,637.30 and 168,013,496.14 is: 231,860,415.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,142,276.46 : 426,619,637.30 = 168,013,496.14 : x
  2. Step 2: Convert to fraction form
    309,142,276.46/426,619,637.30 = 168,013,496.14/x
  3. Step 3: Cross multiply
    309,142,276.46x = 426,619,637.30 × 168,013,496.14
  4. Step 4: Simplify right side
    309,142,276.46x = 71,677,856,786,503,744
  5. Step 5: Solve for x
    x = 71,677,856,786,503,744/309,142,276.46
  6. Step 6: Final answer
    x = 231,860,415.88

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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.