Home / 20,539,652.76-28,345,606.35-11,372,295.51

Finding the Fourth Proportional to 20,539,652.76, 28,345,606.35 and 11,372,295.51

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Solution

The fourth proportional to 20,539,652.76, 28,345,606.35 and 11,372,295.51 is: 15,694,258.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,539,652.76 : 28,345,606.35 = 11,372,295.51 : x
  2. Step 2: Convert to fraction form
    20,539,652.76/28,345,606.35 = 11,372,295.51/x
  3. Step 3: Cross multiply
    20,539,652.76x = 28,345,606.35 × 11,372,295.51
  4. Step 4: Simplify right side
    20,539,652.76x = 322,354,611,822,332.50
  5. Step 5: Solve for x
    x = 322,354,611,822,332.50/20,539,652.76
  6. Step 6: Final answer
    x = 15,694,258.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.