Home / 642,165,259.50-886,261,573.20-359,983,914

Finding the Fourth Proportional to 642,165,259.50, 886,261,573.20 and 359,983,914

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Solution

The fourth proportional to 642,165,259.50, 886,261,573.20 and 359,983,914 is: 496,819,012.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,165,259.50 : 886,261,573.20 = 359,983,914 : x
  2. Step 2: Convert to fraction form
    642,165,259.50/886,261,573.20 = 359,983,914/x
  3. Step 3: Cross multiply
    642,165,259.50x = 886,261,573.20 × 359,983,914
  4. Step 4: Simplify right side
    642,165,259.50x = 319,039,909,948,333,504
  5. Step 5: Solve for x
    x = 319,039,909,948,333,504/642,165,259.50
  6. Step 6: Final answer
    x = 496,819,012.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.