Home / 209,106,411.40-313,659,617.10-140,231,657.80

Finding the Fourth Proportional to 209,106,411.40, 313,659,617.10 and 140,231,657.80

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Solution

The fourth proportional to 209,106,411.40, 313,659,617.10 and 140,231,657.80 is: 210,347,486.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,106,411.40 : 313,659,617.10 = 140,231,657.80 : x
  2. Step 2: Convert to fraction form
    209,106,411.40/313,659,617.10 = 140,231,657.80/x
  3. Step 3: Cross multiply
    209,106,411.40x = 313,659,617.10 × 140,231,657.80
  4. Step 4: Simplify right side
    209,106,411.40x = 43,985,008,090,846,232
  5. Step 5: Solve for x
    x = 43,985,008,090,846,232/209,106,411.40
  6. Step 6: Final answer
    x = 210,347,486.70

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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.