Home / 458,071,310.40-687,106,965.60-274,405,300.80

Finding the Fourth Proportional to 458,071,310.40, 687,106,965.60 and 274,405,300.80

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Solution

The fourth proportional to 458,071,310.40, 687,106,965.60 and 274,405,300.80 is: 411,607,951.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,071,310.40 : 687,106,965.60 = 274,405,300.80 : x
  2. Step 2: Convert to fraction form
    458,071,310.40/687,106,965.60 = 274,405,300.80/x
  3. Step 3: Cross multiply
    458,071,310.40x = 687,106,965.60 × 274,405,300.80
  4. Step 4: Simplify right side
    458,071,310.40x = 188,545,793,577,243,264
  5. Step 5: Solve for x
    x = 188,545,793,577,243,264/458,071,310.40
  6. Step 6: Final answer
    x = 411,607,951.20

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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.