Home / 513,658,872.40-770,488,308.60-329,992,862.80

Finding the Fourth Proportional to 513,658,872.40, 770,488,308.60 and 329,992,862.80

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Solution

The fourth proportional to 513,658,872.40, 770,488,308.60 and 329,992,862.80 is: 494,989,294.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,658,872.40 : 770,488,308.60 = 329,992,862.80 : x
  2. Step 2: Convert to fraction form
    513,658,872.40/770,488,308.60 = 329,992,862.80/x
  3. Step 3: Cross multiply
    513,658,872.40x = 770,488,308.60 × 329,992,862.80
  4. Step 4: Simplify right side
    513,658,872.40x = 254,255,642,708,843,872
  5. Step 5: Solve for x
    x = 254,255,642,708,843,872/513,658,872.40
  6. Step 6: Final answer
    x = 494,989,294.20

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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.