Home / 156,038,018.39-234,027,765.46-78,294,048.10

Finding the Fourth Proportional to 156,038,018.39, 234,027,765.46 and 78,294,048.10

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Solution

The fourth proportional to 156,038,018.39, 234,027,765.46 and 78,294,048.10 is: 117,426,389.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,038,018.39 : 234,027,765.46 = 78,294,048.10 : x
  2. Step 2: Convert to fraction form
    156,038,018.39/234,027,765.46 = 78,294,048.10/x
  3. Step 3: Cross multiply
    156,038,018.39x = 234,027,765.46 × 78,294,048.10
  4. Step 4: Simplify right side
    156,038,018.39x = 18,322,981,125,660,756
  5. Step 5: Solve for x
    x = 18,322,981,125,660,756/156,038,018.39
  6. Step 6: Final answer
    x = 117,426,389.51

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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.