Home / 123,589,813.80-185,384,720.70-69,170,255.40

Finding the Fourth Proportional to 123,589,813.80, 185,384,720.70 and 69,170,255.40

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Solution

The fourth proportional to 123,589,813.80, 185,384,720.70 and 69,170,255.40 is: 103,755,383.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,589,813.80 : 185,384,720.70 = 69,170,255.40 : x
  2. Step 2: Convert to fraction form
    123,589,813.80/185,384,720.70 = 69,170,255.40/x
  3. Step 3: Cross multiply
    123,589,813.80x = 185,384,720.70 × 69,170,255.40
  4. Step 4: Simplify right side
    123,589,813.80x = 12,823,108,478,076,668
  5. Step 5: Solve for x
    x = 12,823,108,478,076,668/123,589,813.80
  6. Step 6: Final answer
    x = 103,755,383.10

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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.