Home / 99,870,100.75-149,805,151.13-28,066,516.75

Finding the Fourth Proportional to 99,870,100.75, 149,805,151.13 and 28,066,516.75

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Solution

The fourth proportional to 99,870,100.75, 149,805,151.13 and 28,066,516.75 is: 42,099,775.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,870,100.75 : 149,805,151.13 = 28,066,516.75 : x
  2. Step 2: Convert to fraction form
    99,870,100.75/149,805,151.13 = 28,066,516.75/x
  3. Step 3: Cross multiply
    99,870,100.75x = 149,805,151.13 × 28,066,516.75
  4. Step 4: Simplify right side
    99,870,100.75x = 4,204,508,783,426,426.50
  5. Step 5: Solve for x
    x = 4,204,508,783,426,426.50/99,870,100.75
  6. Step 6: Final answer
    x = 42,099,775.13

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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.