Home / 66,171,621.60-99,257,432.40-47,890,051.20

Finding the Fourth Proportional to 66,171,621.60, 99,257,432.40 and 47,890,051.20

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Solution

The fourth proportional to 66,171,621.60, 99,257,432.40 and 47,890,051.20 is: 71,835,076.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,171,621.60 : 99,257,432.40 = 47,890,051.20 : x
  2. Step 2: Convert to fraction form
    66,171,621.60/99,257,432.40 = 47,890,051.20/x
  3. Step 3: Cross multiply
    66,171,621.60x = 99,257,432.40 × 47,890,051.20
  4. Step 4: Simplify right side
    66,171,621.60x = 4,753,443,519,616,539
  5. Step 5: Solve for x
    x = 4,753,443,519,616,539/66,171,621.60
  6. Step 6: Final answer
    x = 71,835,076.80

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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.