Home / 80,352,000.80-120,528,001.20-56,165,530.40

Finding the Fourth Proportional to 80,352,000.80, 120,528,001.20 and 56,165,530.40

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Solution

The fourth proportional to 80,352,000.80, 120,528,001.20 and 56,165,530.40 is: 84,248,295.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,352,000.80 : 120,528,001.20 = 56,165,530.40 : x
  2. Step 2: Convert to fraction form
    80,352,000.80/120,528,001.20 = 56,165,530.40/x
  3. Step 3: Cross multiply
    80,352,000.80x = 120,528,001.20 × 56,165,530.40
  4. Step 4: Simplify right side
    80,352,000.80x = 6,769,519,115,449,836
  5. Step 5: Solve for x
    x = 6,769,519,115,449,836/80,352,000.80
  6. Step 6: Final answer
    x = 84,248,295.60

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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.