Home / 398,230,603.40-597,345,905.10-357,415,934.60

Finding the Fourth Proportional to 398,230,603.40, 597,345,905.10 and 357,415,934.60

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Solution

The fourth proportional to 398,230,603.40, 597,345,905.10 and 357,415,934.60 is: 536,123,901.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,230,603.40 : 597,345,905.10 = 357,415,934.60 : x
  2. Step 2: Convert to fraction form
    398,230,603.40/597,345,905.10 = 357,415,934.60/x
  3. Step 3: Cross multiply
    398,230,603.40x = 597,345,905.10 × 357,415,934.60
  4. Step 4: Simplify right side
    398,230,603.40x = 213,500,944,950,799,424
  5. Step 5: Solve for x
    x = 213,500,944,950,799,424/398,230,603.40
  6. Step 6: Final answer
    x = 536,123,901.90

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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.