Home / 139,517,030.72-209,214,537.44-70,387,301.44

Finding the Fourth Proportional to 139,517,030.72, 209,214,537.44 and 70,387,301.44

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Solution

The fourth proportional to 139,517,030.72, 209,214,537.44 and 70,387,301.44 is: 105,550,172.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,517,030.72 : 209,214,537.44 = 70,387,301.44 : x
  2. Step 2: Convert to fraction form
    139,517,030.72/209,214,537.44 = 70,387,301.44/x
  3. Step 3: Cross multiply
    139,517,030.72x = 209,214,537.44 × 70,387,301.44
  4. Step 4: Simplify right side
    139,517,030.72x = 14,726,046,712,419,446
  5. Step 5: Solve for x
    x = 14,726,046,712,419,446/139,517,030.72
  6. Step 6: Final answer
    x = 105,550,172.88

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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.