Home / 513,039,597.42-707,975,676.93-278,085,213.36

Finding the Fourth Proportional to 513,039,597.42, 707,975,676.93 and 278,085,213.36

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Solution

The fourth proportional to 513,039,597.42, 707,975,676.93 and 278,085,213.36 is: 383,747,313.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,039,597.42 : 707,975,676.93 = 278,085,213.36 : x
  2. Step 2: Convert to fraction form
    513,039,597.42/707,975,676.93 = 278,085,213.36/x
  3. Step 3: Cross multiply
    513,039,597.42x = 707,975,676.93 × 278,085,213.36
  4. Step 4: Simplify right side
    513,039,597.42x = 196,877,567,172,769,472
  5. Step 5: Solve for x
    x = 196,877,567,172,769,472/513,039,597.42
  6. Step 6: Final answer
    x = 383,747,313.39

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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.