Home / 20,212,938.12-30,335,129.79-14,108,009.67

Finding the Fourth Proportional to 20,212,938.12, 30,335,129.79 and 14,108,009.67

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Solution

The fourth proportional to 20,212,938.12, 30,335,129.79 and 14,108,009.67 is: 21,172,988.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,212,938.12 : 30,335,129.79 = 14,108,009.67 : x
  2. Step 2: Convert to fraction form
    20,212,938.12/30,335,129.79 = 14,108,009.67/x
  3. Step 3: Cross multiply
    20,212,938.12x = 30,335,129.79 × 14,108,009.67
  4. Step 4: Simplify right side
    20,212,938.12x = 427,968,304,418,025.06
  5. Step 5: Solve for x
    x = 427,968,304,418,025.06/20,212,938.12
  6. Step 6: Final answer
    x = 21,172,988.40

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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.