Home / 498,247,575.66-687,568,333.05-275,224,457.26

Finding the Fourth Proportional to 498,247,575.66, 687,568,333.05 and 275,224,457.26

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Solution

The fourth proportional to 498,247,575.66, 687,568,333.05 and 275,224,457.26 is: 379,802,392.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,247,575.66 : 687,568,333.05 = 275,224,457.26 : x
  2. Step 2: Convert to fraction form
    498,247,575.66/687,568,333.05 = 275,224,457.26/x
  3. Step 3: Cross multiply
    498,247,575.66x = 687,568,333.05 × 275,224,457.26
  4. Step 4: Simplify right side
    498,247,575.66x = 189,235,621,292,849,152
  5. Step 5: Solve for x
    x = 189,235,621,292,849,152/498,247,575.66
  6. Step 6: Final answer
    x = 379,802,392.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.