Home / 436,735,427.20-655,103,140.80-207,152,915.20

Finding the Fourth Proportional to 436,735,427.20, 655,103,140.80 and 207,152,915.20

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Solution

The fourth proportional to 436,735,427.20, 655,103,140.80 and 207,152,915.20 is: 310,729,372.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,735,427.20 : 655,103,140.80 = 207,152,915.20 : x
  2. Step 2: Convert to fraction form
    436,735,427.20/655,103,140.80 = 207,152,915.20/x
  3. Step 3: Cross multiply
    436,735,427.20x = 655,103,140.80 × 207,152,915.20
  4. Step 4: Simplify right side
    436,735,427.20x = 135,706,525,373,396,048
  5. Step 5: Solve for x
    x = 135,706,525,373,396,048/436,735,427.20
  6. Step 6: Final answer
    x = 310,729,372.80

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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.