Home / 20,656,529.60-30,985,960.80-6,280,066.40

Finding the Fourth Proportional to 20,656,529.60, 30,985,960.80 and 6,280,066.40

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Solution

The fourth proportional to 20,656,529.60, 30,985,960.80 and 6,280,066.40 is: 9,420,454.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,656,529.60 : 30,985,960.80 = 6,280,066.40 : x
  2. Step 2: Convert to fraction form
    20,656,529.60/30,985,960.80 = 6,280,066.40/x
  3. Step 3: Cross multiply
    20,656,529.60x = 30,985,960.80 × 6,280,066.40
  4. Step 4: Simplify right side
    20,656,529.60x = 194,593,891,291,797.12
  5. Step 5: Solve for x
    x = 194,593,891,291,797.12/20,656,529.60
  6. Step 6: Final answer
    x = 9,420,454.21

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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.