Home / 102,790,629.10-141,882,831.66-66,121,200.10

Finding the Fourth Proportional to 102,790,629.10, 141,882,831.66 and 66,121,200.10

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Solution

The fourth proportional to 102,790,629.10, 141,882,831.66 and 66,121,200.10 is: 91,267,688.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,790,629.10 : 141,882,831.66 = 66,121,200.10 : x
  2. Step 2: Convert to fraction form
    102,790,629.10/141,882,831.66 = 66,121,200.10/x
  3. Step 3: Cross multiply
    102,790,629.10x = 141,882,831.66 × 66,121,200.10
  4. Step 4: Simplify right side
    102,790,629.10x = 9,381,463,102,945,476
  5. Step 5: Solve for x
    x = 9,381,463,102,945,476/102,790,629.10
  6. Step 6: Final answer
    x = 91,267,688.36

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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.