Home / 499,391,999.20-749,087,998.80-362,434,866.40

Finding the Fourth Proportional to 499,391,999.20, 749,087,998.80 and 362,434,866.40

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Solution

The fourth proportional to 499,391,999.20, 749,087,998.80 and 362,434,866.40 is: 543,652,299.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,391,999.20 : 749,087,998.80 = 362,434,866.40 : x
  2. Step 2: Convert to fraction form
    499,391,999.20/749,087,998.80 = 362,434,866.40/x
  3. Step 3: Cross multiply
    499,391,999.20x = 749,087,998.80 × 362,434,866.40
  4. Step 4: Simplify right side
    499,391,999.20x = 271,495,608,766,921,312
  5. Step 5: Solve for x
    x = 271,495,608,766,921,312/499,391,999.20
  6. Step 6: Final answer
    x = 543,652,299.60

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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.