Home / 393,337,709.20-590,363,482.20-199,384,051.60

Finding the Fourth Proportional to 393,337,709.20, 590,363,482.20 and 199,384,051.60

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Solution

The fourth proportional to 393,337,709.20, 590,363,482.20 and 199,384,051.60 is: 299,257,000.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,337,709.20 : 590,363,482.20 = 199,384,051.60 : x
  2. Step 2: Convert to fraction form
    393,337,709.20/590,363,482.20 = 199,384,051.60/x
  3. Step 3: Cross multiply
    393,337,709.20x = 590,363,482.20 × 199,384,051.60
  4. Step 4: Simplify right side
    393,337,709.20x = 117,709,062,997,720,480
  5. Step 5: Solve for x
    x = 117,709,062,997,720,480/393,337,709.20
  6. Step 6: Final answer
    x = 299,257,000.40

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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.