Home / 191,684,077.20-287,526,115.80-76,751,103.60

Finding the Fourth Proportional to 191,684,077.20, 287,526,115.80 and 76,751,103.60

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Solution

The fourth proportional to 191,684,077.20, 287,526,115.80 and 76,751,103.60 is: 115,126,655.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,684,077.20 : 287,526,115.80 = 76,751,103.60 : x
  2. Step 2: Convert to fraction form
    191,684,077.20/287,526,115.80 = 76,751,103.60/x
  3. Step 3: Cross multiply
    191,684,077.20x = 287,526,115.80 × 76,751,103.60
  4. Step 4: Simplify right side
    191,684,077.20x = 22,067,946,701,471,396
  5. Step 5: Solve for x
    x = 22,067,946,701,471,396/191,684,077.20
  6. Step 6: Final answer
    x = 115,126,655.40

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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.