Home / 20,783,398.10-31,180,222.84-7,136,747.76

Finding the Fourth Proportional to 20,783,398.10, 31,180,222.84 and 7,136,747.76

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Solution

The fourth proportional to 20,783,398.10, 31,180,222.84 and 7,136,747.76 is: 10,706,881.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,783,398.10 : 31,180,222.84 = 7,136,747.76 : x
  2. Step 2: Convert to fraction form
    20,783,398.10/31,180,222.84 = 7,136,747.76/x
  3. Step 3: Cross multiply
    20,783,398.10x = 31,180,222.84 × 7,136,747.76
  4. Step 4: Simplify right side
    20,783,398.10x = 222,525,385,509,670.84
  5. Step 5: Solve for x
    x = 222,525,385,509,670.84/20,783,398.10
  6. Step 6: Final answer
    x = 10,706,881.74

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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.