Home / 513,039,605.46-707,975,688.06-278,085,221.40

Finding the Fourth Proportional to 513,039,605.46, 707,975,688.06 and 278,085,221.40

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Solution

The fourth proportional to 513,039,605.46, 707,975,688.06 and 278,085,221.40 is: 383,747,324.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,039,605.46 : 707,975,688.06 = 278,085,221.40 : x
  2. Step 2: Convert to fraction form
    513,039,605.46/707,975,688.06 = 278,085,221.40/x
  3. Step 3: Cross multiply
    513,039,605.46x = 707,975,688.06 × 278,085,221.40
  4. Step 4: Simplify right side
    513,039,605.46x = 196,877,575,959,982,400
  5. Step 5: Solve for x
    x = 196,877,575,959,982,400/513,039,605.46
  6. Step 6: Final answer
    x = 383,747,324.50

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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.