Home / 399,243,657.65-550,986,071-229,749,850.91

Finding the Fourth Proportional to 399,243,657.65, 550,986,071 and 229,749,850.91

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Solution

The fourth proportional to 399,243,657.65, 550,986,071 and 229,749,850.91 is: 317,071,956.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,243,657.65 : 550,986,071 = 229,749,850.91 : x
  2. Step 2: Convert to fraction form
    399,243,657.65/550,986,071 = 229,749,850.91/x
  3. Step 3: Cross multiply
    399,243,657.65x = 550,986,071 × 229,749,850.91
  4. Step 4: Simplify right side
    399,243,657.65x = 126,588,967,665,736,672
  5. Step 5: Solve for x
    x = 126,588,967,665,736,672/399,243,657.65
  6. Step 6: Final answer
    x = 317,071,956.54

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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.