Home / 222,230,419.43-306,622,575.81-128,173,334.04

Finding the Fourth Proportional to 222,230,419.43, 306,622,575.81 and 128,173,334.04

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Solution

The fourth proportional to 222,230,419.43, 306,622,575.81 and 128,173,334.04 is: 176,847,246.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,230,419.43 : 306,622,575.81 = 128,173,334.04 : x
  2. Step 2: Convert to fraction form
    222,230,419.43/306,622,575.81 = 128,173,334.04/x
  3. Step 3: Cross multiply
    222,230,419.43x = 306,622,575.81 × 128,173,334.04
  4. Step 4: Simplify right side
    222,230,419.43x = 39,300,837,833,500,352
  5. Step 5: Solve for x
    x = 39,300,837,833,500,352/222,230,419.43
  6. Step 6: Final answer
    x = 176,847,246.81

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1.5x scale

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.