Home / 18,678,057.80-28,001,534.70-7,903,632.20

Finding the Fourth Proportional to 18,678,057.80, 28,001,534.70 and 7,903,632.20

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Solution

The fourth proportional to 18,678,057.80, 28,001,534.70 and 7,903,632.20 is: 11,848,867.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,678,057.80 : 28,001,534.70 = 7,903,632.20 : x
  2. Step 2: Convert to fraction form
    18,678,057.80/28,001,534.70 = 7,903,632.20/x
  3. Step 3: Cross multiply
    18,678,057.80x = 28,001,534.70 × 7,903,632.20
  4. Step 4: Simplify right side
    18,678,057.80x = 221,313,831,304,337.34
  5. Step 5: Solve for x
    x = 221,313,831,304,337.34/18,678,057.80
  6. Step 6: Final answer
    x = 11,848,867.46

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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.