Home / 139,968,309.20-209,952,463.80-139,118,003.60

Finding the Fourth Proportional to 139,968,309.20, 209,952,463.80 and 139,118,003.60

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Solution

The fourth proportional to 139,968,309.20, 209,952,463.80 and 139,118,003.60 is: 208,677,005.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,309.20 : 209,952,463.80 = 139,118,003.60 : x
  2. Step 2: Convert to fraction form
    139,968,309.20/209,952,463.80 = 139,118,003.60/x
  3. Step 3: Cross multiply
    139,968,309.20x = 209,952,463.80 × 139,118,003.60
  4. Step 4: Simplify right side
    139,968,309.20x = 29,208,167,614,757,272
  5. Step 5: Solve for x
    x = 29,208,167,614,757,272/139,968,309.20
  6. Step 6: Final answer
    x = 208,677,005.40

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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.