Home / 399,243,657.15-550,986,070.31-229,749,850.41

Finding the Fourth Proportional to 399,243,657.15, 550,986,070.31 and 229,749,850.41

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Solution

The fourth proportional to 399,243,657.15, 550,986,070.31 and 229,749,850.41 is: 317,071,955.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,243,657.15 : 550,986,070.31 = 229,749,850.41 : x
  2. Step 2: Convert to fraction form
    399,243,657.15/550,986,070.31 = 229,749,850.41/x
  3. Step 3: Cross multiply
    399,243,657.15x = 550,986,070.31 × 229,749,850.41
  4. Step 4: Simplify right side
    399,243,657.15x = 126,588,967,231,716,224
  5. Step 5: Solve for x
    x = 126,588,967,231,716,224/399,243,657.15
  6. Step 6: Final answer
    x = 317,071,955.85

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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.