Home / 287,582,783.60-431,374,175.40-219,558,335.60

Finding the Fourth Proportional to 287,582,783.60, 431,374,175.40 and 219,558,335.60

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Solution

The fourth proportional to 287,582,783.60, 431,374,175.40 and 219,558,335.60 is: 329,337,503.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,582,783.60 : 431,374,175.40 = 219,558,335.60 : x
  2. Step 2: Convert to fraction form
    287,582,783.60/431,374,175.40 = 219,558,335.60/x
  3. Step 3: Cross multiply
    287,582,783.60x = 431,374,175.40 × 219,558,335.60
  4. Step 4: Simplify right side
    287,582,783.60x = 94,711,795,971,646,464
  5. Step 5: Solve for x
    x = 94,711,795,971,646,464/287,582,783.60
  6. Step 6: Final answer
    x = 329,337,503.40

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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.