Home / 7,160,128.50-10,747,128.99-6,771,278.73

Finding the Fourth Proportional to 7,160,128.50, 10,747,128.99 and 6,771,278.73

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Solution

The fourth proportional to 7,160,128.50, 10,747,128.99 and 6,771,278.73 is: 10,163,477.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,160,128.50 : 10,747,128.99 = 6,771,278.73 : x
  2. Step 2: Convert to fraction form
    7,160,128.50/10,747,128.99 = 6,771,278.73/x
  3. Step 3: Cross multiply
    7,160,128.50x = 10,747,128.99 × 6,771,278.73
  4. Step 4: Simplify right side
    7,160,128.50x = 72,771,805,938,553.39
  5. Step 5: Solve for x
    x = 72,771,805,938,553.39/7,160,128.50
  6. Step 6: Final answer
    x = 10,163,477.64

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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.