Home / 389,817,081,657.86-584,312,934,269.04-131,121,563,943.04

Finding the Fourth Proportional to 389,817,081,657.86, 584,312,934,269.04 and 131,121,563,943.04

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Solution

The fourth proportional to 389,817,081,657.86, 584,312,934,269.04 and 131,121,563,943.04 is: 196,543,531,257.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,817,081,657.86 : 584,312,934,269.04 = 131,121,563,943.04 : x
  2. Step 2: Convert to fraction form
    389,817,081,657.86/584,312,934,269.04 = 131,121,563,943.04/x
  3. Step 3: Cross multiply
    389,817,081,657.86x = 584,312,934,269.04 × 131,121,563,943.04
  4. Step 4: Simplify right side
    389,817,081,657.86x = 76,616,025,773,503,250,694,144
  5. Step 5: Solve for x
    x = 76,616,025,773,503,250,694,144/389,817,081,657.86
  6. Step 6: Final answer
    x = 196,543,531,257.43

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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.