Home / 156,672,005.20-235,008,007.80-139,203,998.80

Finding the Fourth Proportional to 156,672,005.20, 235,008,007.80 and 139,203,998.80

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Solution

The fourth proportional to 156,672,005.20, 235,008,007.80 and 139,203,998.80 is: 208,805,998.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,672,005.20 : 235,008,007.80 = 139,203,998.80 : x
  2. Step 2: Convert to fraction form
    156,672,005.20/235,008,007.80 = 139,203,998.80/x
  3. Step 3: Cross multiply
    156,672,005.20x = 235,008,007.80 × 139,203,998.80
  4. Step 4: Simplify right side
    156,672,005.20x = 32,714,054,435,781,596
  5. Step 5: Solve for x
    x = 32,714,054,435,781,596/156,672,005.20
  6. Step 6: Final answer
    x = 208,805,998.20

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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.