Home / 80,352,003.80-120,528,005.70-42,025,266.20

Finding the Fourth Proportional to 80,352,003.80, 120,528,005.70 and 42,025,266.20

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Solution

The fourth proportional to 80,352,003.80, 120,528,005.70 and 42,025,266.20 is: 63,037,899.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,352,003.80 : 120,528,005.70 = 42,025,266.20 : x
  2. Step 2: Convert to fraction form
    80,352,003.80/120,528,005.70 = 42,025,266.20/x
  3. Step 3: Cross multiply
    80,352,003.80x = 120,528,005.70 × 42,025,266.20
  4. Step 4: Simplify right side
    80,352,003.80x = 5,065,221,524,097,618
  5. Step 5: Solve for x
    x = 5,065,221,524,097,618/80,352,003.80
  6. Step 6: Final answer
    x = 63,037,899.30

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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.