Home / 130,398,692.19-179,946,446.02-71,661,286.63

Finding the Fourth Proportional to 130,398,692.19, 179,946,446.02 and 71,661,286.63

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Solution

The fourth proportional to 130,398,692.19, 179,946,446.02 and 71,661,286.63 is: 98,890,515.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,398,692.19 : 179,946,446.02 = 71,661,286.63 : x
  2. Step 2: Convert to fraction form
    130,398,692.19/179,946,446.02 = 71,661,286.63/x
  3. Step 3: Cross multiply
    130,398,692.19x = 179,946,446.02 × 71,661,286.63
  4. Step 4: Simplify right side
    130,398,692.19x = 12,895,193,846,289,042
  5. Step 5: Solve for x
    x = 12,895,193,846,289,042/130,398,692.19
  6. Step 6: Final answer
    x = 98,890,515.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.