Home / 202,787,945.40-279,847,438.74-109,968,428.28

Finding the Fourth Proportional to 202,787,945.40, 279,847,438.74 and 109,968,428.28

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Solution

The fourth proportional to 202,787,945.40, 279,847,438.74 and 109,968,428.28 is: 151,756,471.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,787,945.40 : 279,847,438.74 = 109,968,428.28 : x
  2. Step 2: Convert to fraction form
    202,787,945.40/279,847,438.74 = 109,968,428.28/x
  3. Step 3: Cross multiply
    202,787,945.40x = 279,847,438.74 × 109,968,428.28
  4. Step 4: Simplify right side
    202,787,945.40x = 30,774,382,996,421,384
  5. Step 5: Solve for x
    x = 30,774,382,996,421,384/202,787,945.40
  6. Step 6: Final answer
    x = 151,756,471.20

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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.