Home / 482,443,725.11-721,839,402.83-285,812,673.05

Finding the Fourth Proportional to 482,443,725.11, 721,839,402.83 and 285,812,673.05

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Solution

The fourth proportional to 482,443,725.11, 721,839,402.83 and 285,812,673.05 is: 427,637,128.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,443,725.11 : 721,839,402.83 = 285,812,673.05 : x
  2. Step 2: Convert to fraction form
    482,443,725.11/721,839,402.83 = 285,812,673.05/x
  3. Step 3: Cross multiply
    482,443,725.11x = 721,839,402.83 × 285,812,673.05
  4. Step 4: Simplify right side
    482,443,725.11x = 206,310,849,238,177,152
  5. Step 5: Solve for x
    x = 206,310,849,238,177,152/482,443,725.11
  6. Step 6: Final answer
    x = 427,637,128.44

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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.