Home / 499,949,243.20-749,811,890.40-328,628,411.20

Finding the Fourth Proportional to 499,949,243.20, 749,811,890.40 and 328,628,411.20

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Solution

The fourth proportional to 499,949,243.20, 749,811,890.40 and 328,628,411.20 is: 492,869,013.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,949,243.20 : 749,811,890.40 = 328,628,411.20 : x
  2. Step 2: Convert to fraction form
    499,949,243.20/749,811,890.40 = 328,628,411.20/x
  3. Step 3: Cross multiply
    499,949,243.20x = 749,811,890.40 × 328,628,411.20
  4. Step 4: Simplify right side
    499,949,243.20x = 246,409,490,241,020,512
  5. Step 5: Solve for x
    x = 246,409,490,241,020,512/499,949,243.20
  6. Step 6: Final answer
    x = 492,869,013.39

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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.