Home / 261,504,986.70-392,257,480.05-170,805,722.70

Finding the Fourth Proportional to 261,504,986.70, 392,257,480.05 and 170,805,722.70

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Solution

The fourth proportional to 261,504,986.70, 392,257,480.05 and 170,805,722.70 is: 256,208,584.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,504,986.70 : 392,257,480.05 = 170,805,722.70 : x
  2. Step 2: Convert to fraction form
    261,504,986.70/392,257,480.05 = 170,805,722.70/x
  3. Step 3: Cross multiply
    261,504,986.70x = 392,257,480.05 × 170,805,722.70
  4. Step 4: Simplify right side
    261,504,986.70x = 66,999,822,364,421,080
  5. Step 5: Solve for x
    x = 66,999,822,364,421,080/261,504,986.70
  6. Step 6: Final answer
    x = 256,208,584.05

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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.