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Finding the Fourth Proportional to 266,361,657.60, 399,569,097.60 and 72,276,153.60

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Solution

The fourth proportional to 266,361,657.60, 399,569,097.60 and 72,276,153.60 is: 108,421,451.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,361,657.60 : 399,569,097.60 = 72,276,153.60 : x
  2. Step 2: Convert to fraction form
    266,361,657.60/399,569,097.60 = 72,276,153.60/x
  3. Step 3: Cross multiply
    266,361,657.60x = 399,569,097.60 × 72,276,153.60
  4. Step 4: Simplify right side
    266,361,657.60x = 28,879,317,471,950,992
  5. Step 5: Solve for x
    x = 28,879,317,471,950,992/266,361,657.60
  6. Step 6: Final answer
    x = 108,421,451.24

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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.