Home / 38,238,901.12-52,769,017.92-20,835,390.16

Finding the Fourth Proportional to 38,238,901.12, 52,769,017.92 and 20,835,390.16

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Solution

The fourth proportional to 38,238,901.12, 52,769,017.92 and 20,835,390.16 is: 28,752,475.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,238,901.12 : 52,769,017.92 = 20,835,390.16 : x
  2. Step 2: Convert to fraction form
    38,238,901.12/52,769,017.92 = 20,835,390.16/x
  3. Step 3: Cross multiply
    38,238,901.12x = 52,769,017.92 × 20,835,390.16
  4. Step 4: Simplify right side
    38,238,901.12x = 1,099,463,076,723,231.75
  5. Step 5: Solve for x
    x = 1,099,463,076,723,231.75/38,238,901.12
  6. Step 6: Final answer
    x = 28,752,475.74

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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.