Home / 291,350,399.40-436,955,615.10-168,262,540.20

Finding the Fourth Proportional to 291,350,399.40, 436,955,615.10 and 168,262,540.20

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Solution

The fourth proportional to 291,350,399.40, 436,955,615.10 and 168,262,540.20 is: 252,353,392.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,350,399.40 : 436,955,615.10 = 168,262,540.20 : x
  2. Step 2: Convert to fraction form
    291,350,399.40/436,955,615.10 = 168,262,540.20/x
  3. Step 3: Cross multiply
    291,350,399.40x = 436,955,615.10 × 168,262,540.20
  4. Step 4: Simplify right side
    291,350,399.40x = 73,523,261,751,379,472
  5. Step 5: Solve for x
    x = 73,523,261,751,379,472/291,350,399.40
  6. Step 6: Final answer
    x = 252,353,392.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.