Home / 253,531,560.40-380,351,927.76-78,651,050.56

Finding the Fourth Proportional to 253,531,560.40, 380,351,927.76 and 78,651,050.56

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Solution

The fourth proportional to 253,531,560.40, 380,351,927.76 and 78,651,050.56 is: 117,993,509.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,531,560.40 : 380,351,927.76 = 78,651,050.56 : x
  2. Step 2: Convert to fraction form
    253,531,560.40/380,351,927.76 = 78,651,050.56/x
  3. Step 3: Cross multiply
    253,531,560.40x = 380,351,927.76 × 78,651,050.56
  4. Step 4: Simplify right side
    253,531,560.40x = 29,915,078,700,845,228
  5. Step 5: Solve for x
    x = 29,915,078,700,845,228/253,531,560.40
  6. Step 6: Final answer
    x = 117,993,509.97

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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.