Home / 513,039,603.30-707,975,685.02-278,085,219.24

Finding the Fourth Proportional to 513,039,603.30, 707,975,685.02 and 278,085,219.24

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Solution

The fourth proportional to 513,039,603.30, 707,975,685.02 and 278,085,219.24 is: 383,747,321.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,039,603.30 : 707,975,685.02 = 278,085,219.24 : x
  2. Step 2: Convert to fraction form
    513,039,603.30/707,975,685.02 = 278,085,219.24/x
  3. Step 3: Cross multiply
    513,039,603.30x = 707,975,685.02 × 278,085,219.24
  4. Step 4: Simplify right side
    513,039,603.30x = 196,877,573,585,375,872
  5. Step 5: Solve for x
    x = 196,877,573,585,375,872/513,039,603.30
  6. Step 6: Final answer
    x = 383,747,321.49

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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.