Home / 813,730,872-1,220,597,532.72-376,793,466.24

Finding the Fourth Proportional to 813,730,872, 1,220,597,532.72 and 376,793,466.24

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Solution

The fourth proportional to 813,730,872, 1,220,597,532.72 and 376,793,466.24 is: 565,190,766.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,730,872 : 1,220,597,532.72 = 376,793,466.24 : x
  2. Step 2: Convert to fraction form
    813,730,872/1,220,597,532.72 = 376,793,466.24/x
  3. Step 3: Cross multiply
    813,730,872x = 1,220,597,532.72 × 376,793,466.24
  4. Step 4: Simplify right side
    813,730,872x = 459,913,175,237,560,640
  5. Step 5: Solve for x
    x = 459,913,175,237,560,640/813,730,872
  6. Step 6: Final answer
    x = 565,190,766.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.