Home / 80,352,005.80-120,528,008.70-25,764,485.80

Finding the Fourth Proportional to 80,352,005.80, 120,528,008.70 and 25,764,485.80

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Solution

The fourth proportional to 80,352,005.80, 120,528,008.70 and 25,764,485.80 is: 38,646,728.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,352,005.80 : 120,528,008.70 = 25,764,485.80 : x
  2. Step 2: Convert to fraction form
    80,352,005.80/120,528,008.70 = 25,764,485.80/x
  3. Step 3: Cross multiply
    80,352,005.80x = 120,528,008.70 × 25,764,485.80
  4. Step 4: Simplify right side
    80,352,005.80x = 3,105,342,168,653,426.50
  5. Step 5: Solve for x
    x = 3,105,342,168,653,426.50/80,352,005.80
  6. Step 6: Final answer
    x = 38,646,728.70

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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.