Home / 28,084,674.30-42,033,699.45-20,386,434.30

Finding the Fourth Proportional to 28,084,674.30, 42,033,699.45 and 20,386,434.30

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Solution

The fourth proportional to 28,084,674.30, 42,033,699.45 and 20,386,434.30 is: 30,511,917.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,084,674.30 : 42,033,699.45 = 20,386,434.30 : x
  2. Step 2: Convert to fraction form
    28,084,674.30/42,033,699.45 = 20,386,434.30/x
  3. Step 3: Cross multiply
    28,084,674.30x = 42,033,699.45 × 20,386,434.30
  4. Step 4: Simplify right side
    28,084,674.30x = 856,917,252,223,371.25
  5. Step 5: Solve for x
    x = 856,917,252,223,371.25/28,084,674.30
  6. Step 6: Final answer
    x = 30,511,917.04

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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.