Home / 69,132,946.77-103,698,085.27-20,643,655.41

Finding the Fourth Proportional to 69,132,946.77, 103,698,085.27 and 20,643,655.41

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Solution

The fourth proportional to 69,132,946.77, 103,698,085.27 and 20,643,655.41 is: 30,965,084.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,132,946.77 : 103,698,085.27 = 20,643,655.41 : x
  2. Step 2: Convert to fraction form
    69,132,946.77/103,698,085.27 = 20,643,655.41/x
  3. Step 3: Cross multiply
    69,132,946.77x = 103,698,085.27 × 20,643,655.41
  4. Step 4: Simplify right side
    69,132,946.77x = 2,140,707,538,990,676.75
  5. Step 5: Solve for x
    x = 2,140,707,538,990,676.75/69,132,946.77
  6. Step 6: Final answer
    x = 30,965,084.51

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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.