Home / 220,157,009.28-303,816,867.20-121,039,442.88

Finding the Fourth Proportional to 220,157,009.28, 303,816,867.20 and 121,039,442.88

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Solution

The fourth proportional to 220,157,009.28, 303,816,867.20 and 121,039,442.88 is: 167,034,538.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,157,009.28 : 303,816,867.20 = 121,039,442.88 : x
  2. Step 2: Convert to fraction form
    220,157,009.28/303,816,867.20 = 121,039,442.88/x
  3. Step 3: Cross multiply
    220,157,009.28x = 303,816,867.20 × 121,039,442.88
  4. Step 4: Simplify right side
    220,157,009.28x = 36,773,824,343,434,944
  5. Step 5: Solve for x
    x = 36,773,824,343,434,944/220,157,009.28
  6. Step 6: Final answer
    x = 167,034,538.05

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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.