Home / 66,172,021.60-99,258,032.40-47,890,451.20

Finding the Fourth Proportional to 66,172,021.60, 99,258,032.40 and 47,890,451.20

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Solution

The fourth proportional to 66,172,021.60, 99,258,032.40 and 47,890,451.20 is: 71,835,676.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,172,021.60 : 99,258,032.40 = 47,890,451.20 : x
  2. Step 2: Convert to fraction form
    66,172,021.60/99,258,032.40 = 47,890,451.20/x
  3. Step 3: Cross multiply
    66,172,021.60x = 99,258,032.40 × 47,890,451.20
  4. Step 4: Simplify right side
    66,172,021.60x = 4,753,511,956,860,219
  5. Step 5: Solve for x
    x = 4,753,511,956,860,219/66,172,021.60
  6. Step 6: Final answer
    x = 71,835,676.80

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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.