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Finding the Fourth Proportional to 613,289,824.20, 919,934,736.30 and 368,401,811.40

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Solution

The fourth proportional to 613,289,824.20, 919,934,736.30 and 368,401,811.40 is: 552,602,717.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,289,824.20 : 919,934,736.30 = 368,401,811.40 : x
  2. Step 2: Convert to fraction form
    613,289,824.20/919,934,736.30 = 368,401,811.40/x
  3. Step 3: Cross multiply
    613,289,824.20x = 919,934,736.30 × 368,401,811.40
  4. Step 4: Simplify right side
    613,289,824.20x = 338,905,623,222,701,312
  5. Step 5: Solve for x
    x = 338,905,623,222,701,312/613,289,824.20
  6. Step 6: Final answer
    x = 552,602,717.10

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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.