Home / 139,968,755.20-209,953,132.80-49,101,529.60

Finding the Fourth Proportional to 139,968,755.20, 209,953,132.80 and 49,101,529.60

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Solution

The fourth proportional to 139,968,755.20, 209,953,132.80 and 49,101,529.60 is: 73,652,294.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,755.20 : 209,953,132.80 = 49,101,529.60 : x
  2. Step 2: Convert to fraction form
    139,968,755.20/209,953,132.80 = 49,101,529.60/x
  3. Step 3: Cross multiply
    139,968,755.20x = 209,953,132.80 × 49,101,529.60
  4. Step 4: Simplify right side
    139,968,755.20x = 10,309,019,964,791,932
  5. Step 5: Solve for x
    x = 10,309,019,964,791,932/139,968,755.20
  6. Step 6: Final answer
    x = 73,652,294.40

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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.