Home / 20,271,090.31-27,974,095.76-10,978,660.85

Finding the Fourth Proportional to 20,271,090.31, 27,974,095.76 and 10,978,660.85

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Solution

The fourth proportional to 20,271,090.31, 27,974,095.76 and 10,978,660.85 is: 15,150,547.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,271,090.31 : 27,974,095.76 = 10,978,660.85 : x
  2. Step 2: Convert to fraction form
    20,271,090.31/27,974,095.76 = 10,978,660.85/x
  3. Step 3: Cross multiply
    20,271,090.31x = 27,974,095.76 × 10,978,660.85
  4. Step 4: Simplify right side
    20,271,090.31x = 307,118,109,822,039.19
  5. Step 5: Solve for x
    x = 307,118,109,822,039.19/20,271,090.31
  6. Step 6: Final answer
    x = 15,150,547.17

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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.