Home / 398,628,704.80-597,943,057.20-389,670,752.80

Finding the Fourth Proportional to 398,628,704.80, 597,943,057.20 and 389,670,752.80

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Solution

The fourth proportional to 398,628,704.80, 597,943,057.20 and 389,670,752.80 is: 584,506,129.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,628,704.80 : 597,943,057.20 = 389,670,752.80 : x
  2. Step 2: Convert to fraction form
    398,628,704.80/597,943,057.20 = 389,670,752.80/x
  3. Step 3: Cross multiply
    398,628,704.80x = 597,943,057.20 × 389,670,752.80
  4. Step 4: Simplify right side
    398,628,704.80x = 233,000,921,230,657,472
  5. Step 5: Solve for x
    x = 233,000,921,230,657,472/398,628,704.80
  6. Step 6: Final answer
    x = 584,506,129.20

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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.