Home / 402,551,107.20-603,826,660.80-400,000,190.40

Finding the Fourth Proportional to 402,551,107.20, 603,826,660.80 and 400,000,190.40

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Solution

The fourth proportional to 402,551,107.20, 603,826,660.80 and 400,000,190.40 is: 600,000,285.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,551,107.20 : 603,826,660.80 = 400,000,190.40 : x
  2. Step 2: Convert to fraction form
    402,551,107.20/603,826,660.80 = 400,000,190.40/x
  3. Step 3: Cross multiply
    402,551,107.20x = 603,826,660.80 × 400,000,190.40
  4. Step 4: Simplify right side
    402,551,107.20x = 241,530,779,288,596,192
  5. Step 5: Solve for x
    x = 241,530,779,288,596,192/402,551,107.20
  6. Step 6: Final answer
    x = 600,000,285.60

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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.