Home / 99,870,100.69-149,805,151.03-28,066,516.69

Finding the Fourth Proportional to 99,870,100.69, 149,805,151.03 and 28,066,516.69

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Solution

The fourth proportional to 99,870,100.69, 149,805,151.03 and 28,066,516.69 is: 42,099,775.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,870,100.69 : 149,805,151.03 = 28,066,516.69 : x
  2. Step 2: Convert to fraction form
    99,870,100.69/149,805,151.03 = 28,066,516.69/x
  3. Step 3: Cross multiply
    99,870,100.69x = 149,805,151.03 × 28,066,516.69
  4. Step 4: Simplify right side
    99,870,100.69x = 4,204,508,771,631,466
  5. Step 5: Solve for x
    x = 4,204,508,771,631,466/99,870,100.69
  6. Step 6: Final answer
    x = 42,099,775.03

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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.