Home / 513,039,589.46-707,975,666-278,085,205.40

Finding the Fourth Proportional to 513,039,589.46, 707,975,666 and 278,085,205.40

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Solution

The fourth proportional to 513,039,589.46, 707,975,666 and 278,085,205.40 is: 383,747,302.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,039,589.46 : 707,975,666 = 278,085,205.40 : x
  2. Step 2: Convert to fraction form
    513,039,589.46/707,975,666 = 278,085,205.40/x
  3. Step 3: Cross multiply
    513,039,589.46x = 707,975,666 × 278,085,205.40
  4. Step 4: Simplify right side
    513,039,589.46x = 196,877,558,497,811,776
  5. Step 5: Solve for x
    x = 196,877,558,497,811,776/513,039,589.46
  6. Step 6: Final answer
    x = 383,747,302.44

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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.