Home / 513,039,595.21-707,975,673.91-278,085,211.15

Finding the Fourth Proportional to 513,039,595.21, 707,975,673.91 and 278,085,211.15

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Solution

The fourth proportional to 513,039,595.21, 707,975,673.91 and 278,085,211.15 is: 383,747,310.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,039,595.21 : 707,975,673.91 = 278,085,211.15 : x
  2. Step 2: Convert to fraction form
    513,039,595.21/707,975,673.91 = 278,085,211.15/x
  3. Step 3: Cross multiply
    513,039,595.21x = 707,975,673.91 × 278,085,211.15
  4. Step 4: Simplify right side
    513,039,595.21x = 196,877,564,768,325,856
  5. Step 5: Solve for x
    x = 196,877,564,768,325,856/513,039,595.21
  6. Step 6: Final answer
    x = 383,747,310.36

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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.