Home / 261,828,939.60-392,680,423.80-80,077,692.24

Finding the Fourth Proportional to 261,828,939.60, 392,680,423.80 and 80,077,692.24

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Solution

The fourth proportional to 261,828,939.60, 392,680,423.80 and 80,077,692.24 is: 120,097,274.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,828,939.60 : 392,680,423.80 = 80,077,692.24 : x
  2. Step 2: Convert to fraction form
    261,828,939.60/392,680,423.80 = 80,077,692.24/x
  3. Step 3: Cross multiply
    261,828,939.60x = 392,680,423.80 × 80,077,692.24
  4. Step 4: Simplify right side
    261,828,939.60x = 31,444,942,125,729,172
  5. Step 5: Solve for x
    x = 31,444,942,125,729,172/261,828,939.60
  6. Step 6: Final answer
    x = 120,097,274.86

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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.