Home / 139,968,486.60-209,952,729.90-136,982,502.60

Finding the Fourth Proportional to 139,968,486.60, 209,952,729.90 and 136,982,502.60

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Solution

The fourth proportional to 139,968,486.60, 209,952,729.90 and 136,982,502.60 is: 205,473,753.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,486.60 : 209,952,729.90 = 136,982,502.60 : x
  2. Step 2: Convert to fraction form
    139,968,486.60/209,952,729.90 = 136,982,502.60/x
  3. Step 3: Cross multiply
    139,968,486.60x = 209,952,729.90 × 136,982,502.60
  4. Step 4: Simplify right side
    139,968,486.60x = 28,759,850,369,403,848
  5. Step 5: Solve for x
    x = 28,759,850,369,403,848/139,968,486.60
  6. Step 6: Final answer
    x = 205,473,753.90

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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.