Home / 72,602,910.80-108,904,366.20-56,163,669.20

Finding the Fourth Proportional to 72,602,910.80, 108,904,366.20 and 56,163,669.20

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Solution

The fourth proportional to 72,602,910.80, 108,904,366.20 and 56,163,669.20 is: 84,245,503.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,602,910.80 : 108,904,366.20 = 56,163,669.20 : x
  2. Step 2: Convert to fraction form
    72,602,910.80/108,904,366.20 = 56,163,669.20/x
  3. Step 3: Cross multiply
    72,602,910.80x = 108,904,366.20 × 56,163,669.20
  4. Step 4: Simplify right side
    72,602,910.80x = 6,116,468,797,692,462
  5. Step 5: Solve for x
    x = 6,116,468,797,692,462/72,602,910.80
  6. Step 6: Final answer
    x = 84,245,503.80

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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.