Home / 132,860,779.20-199,123,207.20-118,416,081.60

Finding the Fourth Proportional to 132,860,779.20, 199,123,207.20 and 118,416,081.60

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Solution

The fourth proportional to 132,860,779.20, 199,123,207.20 and 118,416,081.60 is: 177,474,421.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,860,779.20 : 199,123,207.20 = 118,416,081.60 : x
  2. Step 2: Convert to fraction form
    132,860,779.20/199,123,207.20 = 118,416,081.60/x
  3. Step 3: Cross multiply
    132,860,779.20x = 199,123,207.20 × 118,416,081.60
  4. Step 4: Simplify right side
    132,860,779.20x = 23,579,389,952,248,904
  5. Step 5: Solve for x
    x = 23,579,389,952,248,904/132,860,779.20
  6. Step 6: Final answer
    x = 177,474,421.68

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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.