Home / 402,409,657.20-603,614,485.80-272,312,900.40

Finding the Fourth Proportional to 402,409,657.20, 603,614,485.80 and 272,312,900.40

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Solution

The fourth proportional to 402,409,657.20, 603,614,485.80 and 272,312,900.40 is: 408,469,350.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,409,657.20 : 603,614,485.80 = 272,312,900.40 : x
  2. Step 2: Convert to fraction form
    402,409,657.20/603,614,485.80 = 272,312,900.40/x
  3. Step 3: Cross multiply
    402,409,657.20x = 603,614,485.80 × 272,312,900.40
  4. Step 4: Simplify right side
    402,409,657.20x = 164,372,011,351,652,576
  5. Step 5: Solve for x
    x = 164,372,011,351,652,576/402,409,657.20
  6. Step 6: Final answer
    x = 408,469,350.60

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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.