Home / 34,238,646.19-47,244,288.05-20,820,466.78

Finding the Fourth Proportional to 34,238,646.19, 47,244,288.05 and 20,820,466.78

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Solution

The fourth proportional to 34,238,646.19, 47,244,288.05 and 20,820,466.78 is: 28,729,177.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,238,646.19 : 47,244,288.05 = 20,820,466.78 : x
  2. Step 2: Convert to fraction form
    34,238,646.19/47,244,288.05 = 20,820,466.78/x
  3. Step 3: Cross multiply
    34,238,646.19x = 47,244,288.05 × 20,820,466.78
  4. Step 4: Simplify right side
    34,238,646.19x = 983,648,129,785,673.75
  5. Step 5: Solve for x
    x = 983,648,129,785,673.75/34,238,646.19
  6. Step 6: Final answer
    x = 28,729,177.09

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1.5x scale

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.