Home / 38,720,078.80-58,080,118.20-18,564,686.80

Finding the Fourth Proportional to 38,720,078.80, 58,080,118.20 and 18,564,686.80

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Solution

The fourth proportional to 38,720,078.80, 58,080,118.20 and 18,564,686.80 is: 27,847,030.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,720,078.80 : 58,080,118.20 = 18,564,686.80 : x
  2. Step 2: Convert to fraction form
    38,720,078.80/58,080,118.20 = 18,564,686.80/x
  3. Step 3: Cross multiply
    38,720,078.80x = 58,080,118.20 × 18,564,686.80
  4. Step 4: Simplify right side
    38,720,078.80x = 1,078,239,203,689,979.88
  5. Step 5: Solve for x
    x = 1,078,239,203,689,979.88/38,720,078.80
  6. Step 6: Final answer
    x = 27,847,030.20

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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.