Home / 138,533,315.35-207,832,311.47-40,167,079.51

Finding the Fourth Proportional to 138,533,315.35, 207,832,311.47 and 40,167,079.51

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Solution

The fourth proportional to 138,533,315.35, 207,832,311.47 and 40,167,079.51 is: 60,259,995.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,533,315.35 : 207,832,311.47 = 40,167,079.51 : x
  2. Step 2: Convert to fraction form
    138,533,315.35/207,832,311.47 = 40,167,079.51/x
  3. Step 3: Cross multiply
    138,533,315.35x = 207,832,311.47 × 40,167,079.51
  4. Step 4: Simplify right side
    138,533,315.35x = 8,348,016,979,562,574
  5. Step 5: Solve for x
    x = 8,348,016,979,562,574/138,533,315.35
  6. Step 6: Final answer
    x = 60,259,995.64

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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.