Home / 72,611,538.20-108,768,008.10-49,918,059.80

Finding the Fourth Proportional to 72,611,538.20, 108,768,008.10 and 49,918,059.80

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Solution

The fourth proportional to 72,611,538.20, 108,768,008.10 and 49,918,059.80 is: 74,774,451.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,611,538.20 : 108,768,008.10 = 49,918,059.80 : x
  2. Step 2: Convert to fraction form
    72,611,538.20/108,768,008.10 = 49,918,059.80/x
  3. Step 3: Cross multiply
    72,611,538.20x = 108,768,008.10 × 49,918,059.80
  4. Step 4: Simplify right side
    72,611,538.20x = 5,429,487,932,662,684
  5. Step 5: Solve for x
    x = 5,429,487,932,662,684/72,611,538.20
  6. Step 6: Final answer
    x = 74,774,451.38

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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.