Home / 285,429,355.20-428,144,032.80-199,335,913.20

Finding the Fourth Proportional to 285,429,355.20, 428,144,032.80 and 199,335,913.20

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Solution

The fourth proportional to 285,429,355.20, 428,144,032.80 and 199,335,913.20 is: 299,003,869.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,429,355.20 : 428,144,032.80 = 199,335,913.20 : x
  2. Step 2: Convert to fraction form
    285,429,355.20/428,144,032.80 = 199,335,913.20/x
  3. Step 3: Cross multiply
    285,429,355.20x = 428,144,032.80 × 199,335,913.20
  4. Step 4: Simplify right side
    285,429,355.20x = 85,344,481,759,318,752
  5. Step 5: Solve for x
    x = 85,344,481,759,318,752/285,429,355.20
  6. Step 6: Final answer
    x = 299,003,869.80

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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.