Home / 126,286,278.40-189,390,051.60-49,632,803.20

Finding the Fourth Proportional to 126,286,278.40, 189,390,051.60 and 49,632,803.20

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Solution

The fourth proportional to 126,286,278.40, 189,390,051.60 and 49,632,803.20 is: 74,433,733.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,286,278.40 : 189,390,051.60 = 49,632,803.20 : x
  2. Step 2: Convert to fraction form
    126,286,278.40/189,390,051.60 = 49,632,803.20/x
  3. Step 3: Cross multiply
    126,286,278.40x = 189,390,051.60 × 49,632,803.20
  4. Step 4: Simplify right side
    126,286,278.40x = 9,399,959,159,100,646
  5. Step 5: Solve for x
    x = 9,399,959,159,100,646/126,286,278.40
  6. Step 6: Final answer
    x = 74,433,733.25

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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.