Home / 123,168,853.80-184,753,280.70-121,255,666.20

Finding the Fourth Proportional to 123,168,853.80, 184,753,280.70 and 121,255,666.20

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Solution

The fourth proportional to 123,168,853.80, 184,753,280.70 and 121,255,666.20 is: 181,883,499.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,168,853.80 : 184,753,280.70 = 121,255,666.20 : x
  2. Step 2: Convert to fraction form
    123,168,853.80/184,753,280.70 = 121,255,666.20/x
  3. Step 3: Cross multiply
    123,168,853.80x = 184,753,280.70 × 121,255,666.20
  4. Step 4: Simplify right side
    123,168,853.80x = 22,402,382,133,914,100
  5. Step 5: Solve for x
    x = 22,402,382,133,914,100/123,168,853.80
  6. Step 6: Final answer
    x = 181,883,499.30

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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.