Home / 261,504,985.20-392,257,477.80-170,805,721.20

Finding the Fourth Proportional to 261,504,985.20, 392,257,477.80 and 170,805,721.20

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Solution

The fourth proportional to 261,504,985.20, 392,257,477.80 and 170,805,721.20 is: 256,208,581.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,504,985.20 : 392,257,477.80 = 170,805,721.20 : x
  2. Step 2: Convert to fraction form
    261,504,985.20/392,257,477.80 = 170,805,721.20/x
  3. Step 3: Cross multiply
    261,504,985.20x = 392,257,477.80 × 170,805,721.20
  4. Step 4: Simplify right side
    261,504,985.20x = 66,999,821,391,721,984
  5. Step 5: Solve for x
    x = 66,999,821,391,721,984/261,504,985.20
  6. Step 6: Final answer
    x = 256,208,581.80

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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.