Home / 99,870,218.80-149,805,328.20-28,066,634.80

Finding the Fourth Proportional to 99,870,218.80, 149,805,328.20 and 28,066,634.80

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Solution

The fourth proportional to 99,870,218.80, 149,805,328.20 and 28,066,634.80 is: 42,099,952.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,870,218.80 : 149,805,328.20 = 28,066,634.80 : x
  2. Step 2: Convert to fraction form
    99,870,218.80/149,805,328.20 = 28,066,634.80/x
  3. Step 3: Cross multiply
    99,870,218.80x = 149,805,328.20 × 28,066,634.80
  4. Step 4: Simplify right side
    99,870,218.80x = 4,204,531,437,683,541
  5. Step 5: Solve for x
    x = 4,204,531,437,683,541/99,870,218.80
  6. Step 6: Final answer
    x = 42,099,952.20

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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.