Home / 781,662,773.03-1,172,531,869.54-257,020,260.26

Finding the Fourth Proportional to 781,662,773.03, 1,172,531,869.54 and 257,020,260.26

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Solution

The fourth proportional to 781,662,773.03, 1,172,531,869.54 and 257,020,260.26 is: 385,542,789.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,662,773.03 : 1,172,531,869.54 = 257,020,260.26 : x
  2. Step 2: Convert to fraction form
    781,662,773.03/1,172,531,869.54 = 257,020,260.26/x
  3. Step 3: Cross multiply
    781,662,773.03x = 1,172,531,869.54 × 257,020,260.26
  4. Step 4: Simplify right side
    781,662,773.03x = 301,364,446,265,809,920
  5. Step 5: Solve for x
    x = 301,364,446,265,809,920/781,662,773.03
  6. Step 6: Final answer
    x = 385,542,789.89

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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.