Home / 222,539,088.63-307,063,335.85-128,418,899.18

Finding the Fourth Proportional to 222,539,088.63, 307,063,335.85 and 128,418,899.18

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Solution

The fourth proportional to 222,539,088.63, 307,063,335.85 and 128,418,899.18 is: 177,194,648.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,539,088.63 : 307,063,335.85 = 128,418,899.18 : x
  2. Step 2: Convert to fraction form
    222,539,088.63/307,063,335.85 = 128,418,899.18/x
  3. Step 3: Cross multiply
    222,539,088.63x = 307,063,335.85 × 128,418,899.18
  4. Step 4: Simplify right side
    222,539,088.63x = 39,432,735,568,842,248
  5. Step 5: Solve for x
    x = 39,432,735,568,842,248/222,539,088.63
  6. Step 6: Final answer
    x = 177,194,648.42

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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.