Home / 513,039,619.90-707,975,708.06-278,085,235.96

Finding the Fourth Proportional to 513,039,619.90, 707,975,708.06 and 278,085,235.96

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Solution

The fourth proportional to 513,039,619.90, 707,975,708.06 and 278,085,235.96 is: 383,747,344.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,039,619.90 : 707,975,708.06 = 278,085,235.96 : x
  2. Step 2: Convert to fraction form
    513,039,619.90/707,975,708.06 = 278,085,235.96/x
  3. Step 3: Cross multiply
    513,039,619.90x = 707,975,708.06 × 278,085,235.96
  4. Step 4: Simplify right side
    513,039,619.90x = 196,877,591,829,813,152
  5. Step 5: Solve for x
    x = 196,877,591,829,813,152/513,039,619.90
  6. Step 6: Final answer
    x = 383,747,344.64

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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.