Home / 229,110,642.51-316,206,003.05-128,650,357.38

Finding the Fourth Proportional to 229,110,642.51, 316,206,003.05 and 128,650,357.38

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Solution

The fourth proportional to 229,110,642.51, 316,206,003.05 and 128,650,357.38 is: 177,556,201.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,110,642.51 : 316,206,003.05 = 128,650,357.38 : x
  2. Step 2: Convert to fraction form
    229,110,642.51/316,206,003.05 = 128,650,357.38/x
  3. Step 3: Cross multiply
    229,110,642.51x = 316,206,003.05 × 128,650,357.38
  4. Step 4: Simplify right side
    229,110,642.51x = 40,680,015,297,440,616
  5. Step 5: Solve for x
    x = 40,680,015,297,440,616/229,110,642.51
  6. Step 6: Final answer
    x = 177,556,201.02

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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.