Home / 323,450,999.40-485,176,499.10-288,514,986.60

Finding the Fourth Proportional to 323,450,999.40, 485,176,499.10 and 288,514,986.60

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Solution

The fourth proportional to 323,450,999.40, 485,176,499.10 and 288,514,986.60 is: 432,772,479.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,450,999.40 : 485,176,499.10 = 288,514,986.60 : x
  2. Step 2: Convert to fraction form
    323,450,999.40/485,176,499.10 = 288,514,986.60/x
  3. Step 3: Cross multiply
    323,450,999.40x = 485,176,499.10 × 288,514,986.60
  4. Step 4: Simplify right side
    323,450,999.40x = 139,980,691,136,471,424
  5. Step 5: Solve for x
    x = 139,980,691,136,471,424/323,450,999.40
  6. Step 6: Final answer
    x = 432,772,479.90

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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.