Home / 28,530,665,236.42-42,758,769,167.81-15,939,015,068.31

Finding the Fourth Proportional to 28,530,665,236.42, 42,758,769,167.81 and 15,939,015,068.31

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Solution

The fourth proportional to 28,530,665,236.42, 42,758,769,167.81 and 15,939,015,068.31 is: 23,887,724,328.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,530,665,236.42 : 42,758,769,167.81 = 15,939,015,068.31 : x
  2. Step 2: Convert to fraction form
    28,530,665,236.42/42,758,769,167.81 = 15,939,015,068.31/x
  3. Step 3: Cross multiply
    28,530,665,236.42x = 42,758,769,167.81 × 15,939,015,068.31
  4. Step 4: Simplify right side
    28,530,665,236.42x = 681,532,666,067,941,588,992
  5. Step 5: Solve for x
    x = 681,532,666,067,941,588,992/28,530,665,236.42
  6. Step 6: Final answer
    x = 23,887,724,328.21

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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.