Home / 549,072,781.87-823,608,511.83-140,128,976.11

Finding the Fourth Proportional to 549,072,781.87, 823,608,511.83 and 140,128,976.11

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Solution

The fourth proportional to 549,072,781.87, 823,608,511.83 and 140,128,976.11 is: 210,193,295.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,072,781.87 : 823,608,511.83 = 140,128,976.11 : x
  2. Step 2: Convert to fraction form
    549,072,781.87/823,608,511.83 = 140,128,976.11/x
  3. Step 3: Cross multiply
    549,072,781.87x = 823,608,511.83 × 140,128,976.11
  4. Step 4: Simplify right side
    549,072,781.87x = 115,411,417,478,218,736
  5. Step 5: Solve for x
    x = 115,411,417,478,218,736/549,072,781.87
  6. Step 6: Final answer
    x = 210,193,295.48

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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.