Home / 242,326,010.40-363,489,015.60-145,580,128.80

Finding the Fourth Proportional to 242,326,010.40, 363,489,015.60 and 145,580,128.80

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Solution

The fourth proportional to 242,326,010.40, 363,489,015.60 and 145,580,128.80 is: 218,370,193.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,326,010.40 : 363,489,015.60 = 145,580,128.80 : x
  2. Step 2: Convert to fraction form
    242,326,010.40/363,489,015.60 = 145,580,128.80/x
  3. Step 3: Cross multiply
    242,326,010.40x = 363,489,015.60 × 145,580,128.80
  4. Step 4: Simplify right side
    242,326,010.40x = 52,916,777,708,433,216
  5. Step 5: Solve for x
    x = 52,916,777,708,433,216/242,326,010.40
  6. Step 6: Final answer
    x = 218,370,193.20

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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.