Home / 158,568,214.32-218,831,345.64-92,490,021.36

Finding the Fourth Proportional to 158,568,214.32, 218,831,345.64 and 92,490,021.36

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Solution

The fourth proportional to 158,568,214.32, 218,831,345.64 and 92,490,021.36 is: 127,640,434.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,568,214.32 : 218,831,345.64 = 92,490,021.36 : x
  2. Step 2: Convert to fraction form
    158,568,214.32/218,831,345.64 = 92,490,021.36/x
  3. Step 3: Cross multiply
    158,568,214.32x = 218,831,345.64 × 92,490,021.36
  4. Step 4: Simplify right side
    158,568,214.32x = 20,239,715,832,481,140
  5. Step 5: Solve for x
    x = 20,239,715,832,481,140/158,568,214.32
  6. Step 6: Final answer
    x = 127,640,434.87

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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.