Home / 191,538,065.40-287,307,098.10-115,010,561.40

Finding the Fourth Proportional to 191,538,065.40, 287,307,098.10 and 115,010,561.40

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Solution

The fourth proportional to 191,538,065.40, 287,307,098.10 and 115,010,561.40 is: 172,515,842.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,538,065.40 : 287,307,098.10 = 115,010,561.40 : x
  2. Step 2: Convert to fraction form
    191,538,065.40/287,307,098.10 = 115,010,561.40/x
  3. Step 3: Cross multiply
    191,538,065.40x = 287,307,098.10 × 115,010,561.40
  4. Step 4: Simplify right side
    191,538,065.40x = 33,043,350,646,685,876
  5. Step 5: Solve for x
    x = 33,043,350,646,685,876/191,538,065.40
  6. Step 6: Final answer
    x = 172,515,842.10

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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.