Home / 287,805,238.68-431,611,189.92-93,670,998.60

Finding the Fourth Proportional to 287,805,238.68, 431,611,189.92 and 93,670,998.60

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Solution

The fourth proportional to 287,805,238.68, 431,611,189.92 and 93,670,998.60 is: 140,475,035.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,805,238.68 : 431,611,189.92 = 93,670,998.60 : x
  2. Step 2: Convert to fraction form
    287,805,238.68/431,611,189.92 = 93,670,998.60/x
  3. Step 3: Cross multiply
    287,805,238.68x = 431,611,189.92 × 93,670,998.60
  4. Step 4: Simplify right side
    287,805,238.68x = 40,429,451,166,740,656
  5. Step 5: Solve for x
    x = 40,429,451,166,740,656/287,805,238.68
  6. Step 6: Final answer
    x = 140,475,035.66

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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.