Home / 487,154,538.80-730,731,808.20-228,395,915.90

Finding the Fourth Proportional to 487,154,538.80, 730,731,808.20 and 228,395,915.90

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Solution

The fourth proportional to 487,154,538.80, 730,731,808.20 and 228,395,915.90 is: 342,593,873.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,154,538.80 : 730,731,808.20 = 228,395,915.90 : x
  2. Step 2: Convert to fraction form
    487,154,538.80/730,731,808.20 = 228,395,915.90/x
  3. Step 3: Cross multiply
    487,154,538.80x = 730,731,808.20 × 228,395,915.90
  4. Step 4: Simplify right side
    487,154,538.80x = 166,896,160,611,102,144
  5. Step 5: Solve for x
    x = 166,896,160,611,102,144/487,154,538.80
  6. Step 6: Final answer
    x = 342,593,873.85

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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.