Home / 140,734,457.87-210,917,835.90-78,483,287.97

Finding the Fourth Proportional to 140,734,457.87, 210,917,835.90 and 78,483,287.97

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Solution

The fourth proportional to 140,734,457.87, 210,917,835.90 and 78,483,287.97 is: 117,622,403.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,734,457.87 : 210,917,835.90 = 78,483,287.97 : x
  2. Step 2: Convert to fraction form
    140,734,457.87/210,917,835.90 = 78,483,287.97/x
  3. Step 3: Cross multiply
    140,734,457.87x = 210,917,835.90 × 78,483,287.97
  4. Step 4: Simplify right side
    140,734,457.87x = 16,553,525,252,948,904
  5. Step 5: Solve for x
    x = 16,553,525,252,948,904/140,734,457.87
  6. Step 6: Final answer
    x = 117,622,403.95

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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.