Home / 99,870,216.80-149,805,325.20-28,066,632.80

Finding the Fourth Proportional to 99,870,216.80, 149,805,325.20 and 28,066,632.80

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Solution

The fourth proportional to 99,870,216.80, 149,805,325.20 and 28,066,632.80 is: 42,099,949.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,870,216.80 : 149,805,325.20 = 28,066,632.80 : x
  2. Step 2: Convert to fraction form
    99,870,216.80/149,805,325.20 = 28,066,632.80/x
  3. Step 3: Cross multiply
    99,870,216.80x = 149,805,325.20 × 28,066,632.80
  4. Step 4: Simplify right side
    99,870,216.80x = 4,204,531,053,872,986.50
  5. Step 5: Solve for x
    x = 4,204,531,053,872,986.50/99,870,216.80
  6. Step 6: Final answer
    x = 42,099,949.20

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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.