Home / 39,011,752.78-53,836,217.85-21,609,219.01

Finding the Fourth Proportional to 39,011,752.78, 53,836,217.85 and 21,609,219.01

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Solution

The fourth proportional to 39,011,752.78, 53,836,217.85 and 21,609,219.01 is: 29,820,721.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,011,752.78 : 53,836,217.85 = 21,609,219.01 : x
  2. Step 2: Convert to fraction form
    39,011,752.78/53,836,217.85 = 21,609,219.01/x
  3. Step 3: Cross multiply
    39,011,752.78x = 53,836,217.85 × 21,609,219.01
  4. Step 4: Simplify right side
    39,011,752.78x = 1,163,358,622,190,721.50
  5. Step 5: Solve for x
    x = 1,163,358,622,190,721.50/39,011,752.78
  6. Step 6: Final answer
    x = 29,820,721.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.