Home / 402,551,108.20-603,826,662.30-400,000,191.40

Finding the Fourth Proportional to 402,551,108.20, 603,826,662.30 and 400,000,191.40

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Solution

The fourth proportional to 402,551,108.20, 603,826,662.30 and 400,000,191.40 is: 600,000,287.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,551,108.20 : 603,826,662.30 = 400,000,191.40 : x
  2. Step 2: Convert to fraction form
    402,551,108.20/603,826,662.30 = 400,000,191.40/x
  3. Step 3: Cross multiply
    402,551,108.20x = 603,826,662.30 × 400,000,191.40
  4. Step 4: Simplify right side
    402,551,108.20x = 241,530,780,492,423,136
  5. Step 5: Solve for x
    x = 241,530,780,492,423,136/402,551,108.20
  6. Step 6: Final answer
    x = 600,000,287.10

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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.