Home / 66,439,600.70-99,673,397.85-28,081,370.30

Finding the Fourth Proportional to 66,439,600.70, 99,673,397.85 and 28,081,370.30

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Solution

The fourth proportional to 66,439,600.70, 99,673,397.85 and 28,081,370.30 is: 42,127,971.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,439,600.70 : 99,673,397.85 = 28,081,370.30 : x
  2. Step 2: Convert to fraction form
    66,439,600.70/99,673,397.85 = 28,081,370.30/x
  3. Step 3: Cross multiply
    66,439,600.70x = 99,673,397.85 × 28,081,370.30
  4. Step 4: Simplify right side
    66,439,600.70x = 2,798,965,594,085,074
  5. Step 5: Solve for x
    x = 2,798,965,594,085,074/66,439,600.70
  6. Step 6: Final answer
    x = 42,127,971.34

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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.