Home / 123,039,109.20-184,558,663.80-121,125,921.60

Finding the Fourth Proportional to 123,039,109.20, 184,558,663.80 and 121,125,921.60

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Solution

The fourth proportional to 123,039,109.20, 184,558,663.80 and 121,125,921.60 is: 181,688,882.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,039,109.20 : 184,558,663.80 = 121,125,921.60 : x
  2. Step 2: Convert to fraction form
    123,039,109.20/184,558,663.80 = 121,125,921.60/x
  3. Step 3: Cross multiply
    123,039,109.20x = 184,558,663.80 × 121,125,921.60
  4. Step 4: Simplify right side
    123,039,109.20x = 22,354,838,242,039,560
  5. Step 5: Solve for x
    x = 22,354,838,242,039,560/123,039,109.20
  6. Step 6: Final answer
    x = 181,688,882.40

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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.