Home / 485,336,664.78-726,849,402.98-309,916,337.46

Finding the Fourth Proportional to 485,336,664.78, 726,849,402.98 and 309,916,337.46

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Solution

The fourth proportional to 485,336,664.78, 726,849,402.98 and 309,916,337.46 is: 464,136,590.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,336,664.78 : 726,849,402.98 = 309,916,337.46 : x
  2. Step 2: Convert to fraction form
    485,336,664.78/726,849,402.98 = 309,916,337.46/x
  3. Step 3: Cross multiply
    485,336,664.78x = 726,849,402.98 × 309,916,337.46
  4. Step 4: Simplify right side
    485,336,664.78x = 225,262,504,854,999,616
  5. Step 5: Solve for x
    x = 225,262,504,854,999,616/485,336,664.78
  6. Step 6: Final answer
    x = 464,136,590.54

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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.