Home / 279,909,971.58-419,863,462.29-72,648,230.88

Finding the Fourth Proportional to 279,909,971.58, 419,863,462.29 and 72,648,230.88

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Solution

The fourth proportional to 279,909,971.58, 419,863,462.29 and 72,648,230.88 is: 108,971,958.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,909,971.58 : 419,863,462.29 = 72,648,230.88 : x
  2. Step 2: Convert to fraction form
    279,909,971.58/419,863,462.29 = 72,648,230.88/x
  3. Step 3: Cross multiply
    279,909,971.58x = 419,863,462.29 × 72,648,230.88
  4. Step 4: Simplify right side
    279,909,971.58x = 30,502,337,746,520,092
  5. Step 5: Solve for x
    x = 30,502,337,746,520,092/279,909,971.58
  6. Step 6: Final answer
    x = 108,971,958.28

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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.