Home / 156,859,477.20-235,289,215.80-80,157,013.20

Finding the Fourth Proportional to 156,859,477.20, 235,289,215.80 and 80,157,013.20

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Solution

The fourth proportional to 156,859,477.20, 235,289,215.80 and 80,157,013.20 is: 120,235,519.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,859,477.20 : 235,289,215.80 = 80,157,013.20 : x
  2. Step 2: Convert to fraction form
    156,859,477.20/235,289,215.80 = 80,157,013.20/x
  3. Step 3: Cross multiply
    156,859,477.20x = 235,289,215.80 × 80,157,013.20
  4. Step 4: Simplify right side
    156,859,477.20x = 18,860,080,776,698,252
  5. Step 5: Solve for x
    x = 18,860,080,776,698,252/156,859,477.20
  6. Step 6: Final answer
    x = 120,235,519.80

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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.