Home / 291,397,438.80-402,151,388.76-165,954,939.12

Finding the Fourth Proportional to 291,397,438.80, 402,151,388.76 and 165,954,939.12

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Solution

The fourth proportional to 291,397,438.80, 402,151,388.76 and 165,954,939.12 is: 229,030,871.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,397,438.80 : 402,151,388.76 = 165,954,939.12 : x
  2. Step 2: Convert to fraction form
    291,397,438.80/402,151,388.76 = 165,954,939.12/x
  3. Step 3: Cross multiply
    291,397,438.80x = 402,151,388.76 × 165,954,939.12
  4. Step 4: Simplify right side
    291,397,438.80x = 66,739,009,238,689,256
  5. Step 5: Solve for x
    x = 66,739,009,238,689,256/291,397,438.80
  6. Step 6: Final answer
    x = 229,030,871.08

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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.