Home / 85,373,968.29-128,041,786.05-39,271,559.95

Finding the Fourth Proportional to 85,373,968.29, 128,041,786.05 and 39,271,559.95

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Solution

The fourth proportional to 85,373,968.29, 128,041,786.05 and 39,271,559.95 is: 58,898,523.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,373,968.29 : 128,041,786.05 = 39,271,559.95 : x
  2. Step 2: Convert to fraction form
    85,373,968.29/128,041,786.05 = 39,271,559.95/x
  3. Step 3: Cross multiply
    85,373,968.29x = 128,041,786.05 × 39,271,559.95
  4. Step 4: Simplify right side
    85,373,968.29x = 5,028,400,676,967,649
  5. Step 5: Solve for x
    x = 5,028,400,676,967,649/85,373,968.29
  6. Step 6: Final answer
    x = 58,898,523.49

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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.