Home / 20,282,299.76-27,989,598.29-10,989,862.50

Finding the Fourth Proportional to 20,282,299.76, 27,989,598.29 and 10,989,862.50

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Solution

The fourth proportional to 20,282,299.76, 27,989,598.29 and 10,989,862.50 is: 15,166,023.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,282,299.76 : 27,989,598.29 = 10,989,862.50 : x
  2. Step 2: Convert to fraction form
    20,282,299.76/27,989,598.29 = 10,989,862.50/x
  3. Step 3: Cross multiply
    20,282,299.76x = 27,989,598.29 × 10,989,862.50
  4. Step 4: Simplify right side
    20,282,299.76x = 307,601,836,582,385.81
  5. Step 5: Solve for x
    x = 307,601,836,582,385.81/20,282,299.76
  6. Step 6: Final answer
    x = 15,166,023.59

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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.