Home / 199,728,222.80-299,592,334.20-139,212,280.40

Finding the Fourth Proportional to 199,728,222.80, 299,592,334.20 and 139,212,280.40

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Solution

The fourth proportional to 199,728,222.80, 299,592,334.20 and 139,212,280.40 is: 208,818,420.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,728,222.80 : 299,592,334.20 = 139,212,280.40 : x
  2. Step 2: Convert to fraction form
    199,728,222.80/299,592,334.20 = 139,212,280.40/x
  3. Step 3: Cross multiply
    199,728,222.80x = 299,592,334.20 × 139,212,280.40
  4. Step 4: Simplify right side
    199,728,222.80x = 41,706,932,034,340,912
  5. Step 5: Solve for x
    x = 41,706,932,034,340,912/199,728,222.80
  6. Step 6: Final answer
    x = 208,818,420.60

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1.5x scale

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.