Home / 808,243,012.40-1,212,364,518.60-730,758,914.60

Finding the Fourth Proportional to 808,243,012.40, 1,212,364,518.60 and 730,758,914.60

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Solution

The fourth proportional to 808,243,012.40, 1,212,364,518.60 and 730,758,914.60 is: 1,096,138,371.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,243,012.40 : 1,212,364,518.60 = 730,758,914.60 : x
  2. Step 2: Convert to fraction form
    808,243,012.40/1,212,364,518.60 = 730,758,914.60/x
  3. Step 3: Cross multiply
    808,243,012.40x = 1,212,364,518.60 × 730,758,914.60
  4. Step 4: Simplify right side
    808,243,012.40x = 885,946,179,711,687,424
  5. Step 5: Solve for x
    x = 885,946,179,711,687,424/808,243,012.40
  6. Step 6: Final answer
    x = 1,096,138,371.90

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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.