Home / 491,832,003.60-737,748,005.40-128,326,359.60

Finding the Fourth Proportional to 491,832,003.60, 737,748,005.40 and 128,326,359.60

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Solution

The fourth proportional to 491,832,003.60, 737,748,005.40 and 128,326,359.60 is: 192,489,539.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,832,003.60 : 737,748,005.40 = 128,326,359.60 : x
  2. Step 2: Convert to fraction form
    491,832,003.60/737,748,005.40 = 128,326,359.60/x
  3. Step 3: Cross multiply
    491,832,003.60x = 737,748,005.40 × 128,326,359.60
  4. Step 4: Simplify right side
    491,832,003.60x = 94,672,515,835,143,136
  5. Step 5: Solve for x
    x = 94,672,515,835,143,136/491,832,003.60
  6. Step 6: Final answer
    x = 192,489,539.40

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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.