Home / 399,526,429.20-598,439,338.20-331,501,981.20

Finding the Fourth Proportional to 399,526,429.20, 598,439,338.20 and 331,501,981.20

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Solution

The fourth proportional to 399,526,429.20, 598,439,338.20 and 331,501,981.20 is: 496,547,441.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,526,429.20 : 598,439,338.20 = 331,501,981.20 : x
  2. Step 2: Convert to fraction form
    399,526,429.20/598,439,338.20 = 331,501,981.20/x
  3. Step 3: Cross multiply
    399,526,429.20x = 598,439,338.20 × 331,501,981.20
  4. Step 4: Simplify right side
    399,526,429.20x = 198,383,826,241,316,864
  5. Step 5: Solve for x
    x = 198,383,826,241,316,864/399,526,429.20
  6. Step 6: Final answer
    x = 496,547,441.53

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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.