Home / 287,313,852.40-430,970,784.30-68,964,194.46

Finding the Fourth Proportional to 287,313,852.40, 430,970,784.30 and 68,964,194.46

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Solution

The fourth proportional to 287,313,852.40, 430,970,784.30 and 68,964,194.46 is: 103,446,293.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,313,852.40 : 430,970,784.30 = 68,964,194.46 : x
  2. Step 2: Convert to fraction form
    287,313,852.40/430,970,784.30 = 68,964,194.46/x
  3. Step 3: Cross multiply
    287,313,852.40x = 430,970,784.30 × 68,964,194.46
  4. Step 4: Simplify right side
    287,313,852.40x = 29,721,552,975,043,912
  5. Step 5: Solve for x
    x = 29,721,552,975,043,912/287,313,852.40
  6. Step 6: Final answer
    x = 103,446,293.06

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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.