Home / 139,968,487.20-209,952,730.80-49,101,261.60

Finding the Fourth Proportional to 139,968,487.20, 209,952,730.80 and 49,101,261.60

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Solution

The fourth proportional to 139,968,487.20, 209,952,730.80 and 49,101,261.60 is: 73,651,892.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,487.20 : 209,952,730.80 = 49,101,261.60 : x
  2. Step 2: Convert to fraction form
    139,968,487.20/209,952,730.80 = 49,101,261.60/x
  3. Step 3: Cross multiply
    139,968,487.20x = 209,952,730.80 × 49,101,261.60
  4. Step 4: Simplify right side
    139,968,487.20x = 10,308,943,958,645,178
  5. Step 5: Solve for x
    x = 10,308,943,958,645,178/139,968,487.20
  6. Step 6: Final answer
    x = 73,651,892.40

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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.