Home / 139,968,308.60-209,952,462.90-49,080,087.80

Finding the Fourth Proportional to 139,968,308.60, 209,952,462.90 and 49,080,087.80

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Solution

The fourth proportional to 139,968,308.60, 209,952,462.90 and 49,080,087.80 is: 73,620,131.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,308.60 : 209,952,462.90 = 49,080,087.80 : x
  2. Step 2: Convert to fraction form
    139,968,308.60/209,952,462.90 = 49,080,087.80/x
  3. Step 3: Cross multiply
    139,968,308.60x = 209,952,462.90 × 49,080,087.80
  4. Step 4: Simplify right side
    139,968,308.60x = 10,304,485,312,958,242
  5. Step 5: Solve for x
    x = 10,304,485,312,958,242/139,968,308.60
  6. Step 6: Final answer
    x = 73,620,131.70

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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.