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Finding the Fourth Proportional to 76,633,014.40, 114,981,014.40 and 28,134,102.40

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Solution

The fourth proportional to 76,633,014.40, 114,981,014.40 and 28,134,102.40 is: 42,212,715.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,633,014.40 : 114,981,014.40 = 28,134,102.40 : x
  2. Step 2: Convert to fraction form
    76,633,014.40/114,981,014.40 = 28,134,102.40/x
  3. Step 3: Cross multiply
    76,633,014.40x = 114,981,014.40 × 28,134,102.40
  4. Step 4: Simplify right side
    76,633,014.40x = 3,234,887,633,185,474.50
  5. Step 5: Solve for x
    x = 3,234,887,633,185,474.50/76,633,014.40
  6. Step 6: Final answer
    x = 42,212,715.48

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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.