Home / 20,582,579.40-30,851,750.70-7,798,144.20

Finding the Fourth Proportional to 20,582,579.40, 30,851,750.70 and 7,798,144.20

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Solution

The fourth proportional to 20,582,579.40, 30,851,750.70 and 7,798,144.20 is: 11,688,836.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,582,579.40 : 30,851,750.70 = 7,798,144.20 : x
  2. Step 2: Convert to fraction form
    20,582,579.40/30,851,750.70 = 7,798,144.20/x
  3. Step 3: Cross multiply
    20,582,579.40x = 30,851,750.70 × 7,798,144.20
  4. Step 4: Simplify right side
    20,582,579.40x = 240,586,400,781,050.94
  5. Step 5: Solve for x
    x = 240,586,400,781,050.94/20,582,579.40
  6. Step 6: Final answer
    x = 11,688,836.28

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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.