Home / 80,352,004.80-120,528,007.20-42,025,267.20

Finding the Fourth Proportional to 80,352,004.80, 120,528,007.20 and 42,025,267.20

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Solution

The fourth proportional to 80,352,004.80, 120,528,007.20 and 42,025,267.20 is: 63,037,900.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,352,004.80 : 120,528,007.20 = 42,025,267.20 : x
  2. Step 2: Convert to fraction form
    80,352,004.80/120,528,007.20 = 42,025,267.20/x
  3. Step 3: Cross multiply
    80,352,004.80x = 120,528,007.20 × 42,025,267.20
  4. Step 4: Simplify right side
    80,352,004.80x = 5,065,221,707,663,524
  5. Step 5: Solve for x
    x = 5,065,221,707,663,524/80,352,004.80
  6. Step 6: Final answer
    x = 63,037,900.80

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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.