Home / 20,331,985.20-30,497,783.40-4,979,342.40

Finding the Fourth Proportional to 20,331,985.20, 30,497,783.40 and 4,979,342.40

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Solution

The fourth proportional to 20,331,985.20, 30,497,783.40 and 4,979,342.40 is: 7,468,965.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,331,985.20 : 30,497,783.40 = 4,979,342.40 : x
  2. Step 2: Convert to fraction form
    20,331,985.20/30,497,783.40 = 4,979,342.40/x
  3. Step 3: Cross multiply
    20,331,985.20x = 30,497,783.40 × 4,979,342.40
  4. Step 4: Simplify right side
    20,331,985.20x = 151,858,905,989,636.16
  5. Step 5: Solve for x
    x = 151,858,905,989,636.16/20,331,985.20
  6. Step 6: Final answer
    x = 7,468,965.99

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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.