Home / 398,627,333.80-597,941,000.70-389,669,381.80

Finding the Fourth Proportional to 398,627,333.80, 597,941,000.70 and 389,669,381.80

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Solution

The fourth proportional to 398,627,333.80, 597,941,000.70 and 389,669,381.80 is: 584,504,072.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,627,333.80 : 597,941,000.70 = 389,669,381.80 : x
  2. Step 2: Convert to fraction form
    398,627,333.80/597,941,000.70 = 389,669,381.80/x
  3. Step 3: Cross multiply
    398,627,333.80x = 597,941,000.70 × 389,669,381.80
  4. Step 4: Simplify right side
    398,627,333.80x = 232,999,300,095,642,400
  5. Step 5: Solve for x
    x = 232,999,300,095,642,400/398,627,333.80
  6. Step 6: Final answer
    x = 584,504,072.70

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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.