Home / 156,863,509.20-235,295,263.80-139,644,820.80

Finding the Fourth Proportional to 156,863,509.20, 235,295,263.80 and 139,644,820.80

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Solution

The fourth proportional to 156,863,509.20, 235,295,263.80 and 139,644,820.80 is: 209,467,231.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,863,509.20 : 235,295,263.80 = 139,644,820.80 : x
  2. Step 2: Convert to fraction form
    156,863,509.20/235,295,263.80 = 139,644,820.80/x
  3. Step 3: Cross multiply
    156,863,509.20x = 235,295,263.80 × 139,644,820.80
  4. Step 4: Simplify right side
    156,863,509.20x = 32,857,764,948,439,732
  5. Step 5: Solve for x
    x = 32,857,764,948,439,732/156,863,509.20
  6. Step 6: Final answer
    x = 209,467,231.20

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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.