Home / 20,777,503.90-31,166,256.12-5,631,435.40

Finding the Fourth Proportional to 20,777,503.90, 31,166,256.12 and 5,631,435.40

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Solution

The fourth proportional to 20,777,503.90, 31,166,256.12 and 5,631,435.40 is: 8,447,153.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,777,503.90 : 31,166,256.12 = 5,631,435.40 : x
  2. Step 2: Convert to fraction form
    20,777,503.90/31,166,256.12 = 5,631,435.40/x
  3. Step 3: Cross multiply
    20,777,503.90x = 31,166,256.12 × 5,631,435.40
  4. Step 4: Simplify right side
    20,777,503.90x = 175,510,757,999,634.66
  5. Step 5: Solve for x
    x = 175,510,757,999,634.66/20,777,503.90
  6. Step 6: Final answer
    x = 8,447,153.17

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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.