Home / 28,530,665,238.92-42,758,769,171.56-15,939,015,070.81

Finding the Fourth Proportional to 28,530,665,238.92, 42,758,769,171.56 and 15,939,015,070.81

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Solution

The fourth proportional to 28,530,665,238.92, 42,758,769,171.56 and 15,939,015,070.81 is: 23,887,724,331.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,530,665,238.92 : 42,758,769,171.56 = 15,939,015,070.81 : x
  2. Step 2: Convert to fraction form
    28,530,665,238.92/42,758,769,171.56 = 15,939,015,070.81/x
  3. Step 3: Cross multiply
    28,530,665,238.92x = 42,758,769,171.56 × 15,939,015,070.81
  4. Step 4: Simplify right side
    28,530,665,238.92x = 681,532,666,234,780,778,496
  5. Step 5: Solve for x
    x = 681,532,666,234,780,778,496/28,530,665,238.92
  6. Step 6: Final answer
    x = 23,887,724,331.96

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1.5x scale

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.