Home / 261,468,287.20-392,202,430.80-159,431,615.20

Finding the Fourth Proportional to 261,468,287.20, 392,202,430.80 and 159,431,615.20

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Solution

The fourth proportional to 261,468,287.20, 392,202,430.80 and 159,431,615.20 is: 239,147,422.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,468,287.20 : 392,202,430.80 = 159,431,615.20 : x
  2. Step 2: Convert to fraction form
    261,468,287.20/392,202,430.80 = 159,431,615.20/x
  3. Step 3: Cross multiply
    261,468,287.20x = 392,202,430.80 × 159,431,615.20
  4. Step 4: Simplify right side
    261,468,287.20x = 62,529,467,027,810,224
  5. Step 5: Solve for x
    x = 62,529,467,027,810,224/261,468,287.20
  6. Step 6: Final answer
    x = 239,147,422.80

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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.