Home / 398,603,534.20-597,905,301.30-365,347,137.40

Finding the Fourth Proportional to 398,603,534.20, 597,905,301.30 and 365,347,137.40

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Solution

The fourth proportional to 398,603,534.20, 597,905,301.30 and 365,347,137.40 is: 548,020,706.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,603,534.20 : 597,905,301.30 = 365,347,137.40 : x
  2. Step 2: Convert to fraction form
    398,603,534.20/597,905,301.30 = 365,347,137.40/x
  3. Step 3: Cross multiply
    398,603,534.20x = 597,905,301.30 × 365,347,137.40
  4. Step 4: Simplify right side
    398,603,534.20x = 218,442,990,266,239,456
  5. Step 5: Solve for x
    x = 218,442,990,266,239,456/398,603,534.20
  6. Step 6: Final answer
    x = 548,020,706.10

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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.