Home / 121,507,722.56-167,627,222.28-71,246,286.32

Finding the Fourth Proportional to 121,507,722.56, 167,627,222.28 and 71,246,286.32

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Solution

The fourth proportional to 121,507,722.56, 167,627,222.28 and 71,246,286.32 is: 98,288,543.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,507,722.56 : 167,627,222.28 = 71,246,286.32 : x
  2. Step 2: Convert to fraction form
    121,507,722.56/167,627,222.28 = 71,246,286.32/x
  3. Step 3: Cross multiply
    121,507,722.56x = 167,627,222.28 × 71,246,286.32
  4. Step 4: Simplify right side
    121,507,722.56x = 11,942,817,072,749,026
  5. Step 5: Solve for x
    x = 11,942,817,072,749,026/121,507,722.56
  6. Step 6: Final answer
    x = 98,288,543.48

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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.