Home / 55,121,878.80-82,682,818.20-38,682,637.20

Finding the Fourth Proportional to 55,121,878.80, 82,682,818.20 and 38,682,637.20

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Solution

The fourth proportional to 55,121,878.80, 82,682,818.20 and 38,682,637.20 is: 58,023,955.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,121,878.80 : 82,682,818.20 = 38,682,637.20 : x
  2. Step 2: Convert to fraction form
    55,121,878.80/82,682,818.20 = 38,682,637.20/x
  3. Step 3: Cross multiply
    55,121,878.80x = 82,682,818.20 × 38,682,637.20
  4. Step 4: Simplify right side
    55,121,878.80x = 3,198,389,459,104,157.50
  5. Step 5: Solve for x
    x = 3,198,389,459,104,157.50/55,121,878.80
  6. Step 6: Final answer
    x = 58,023,955.80

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1.5x scale

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.