Home / 18,696,087.86-28,047,767.65-7,180,712.73

Finding the Fourth Proportional to 18,696,087.86, 28,047,767.65 and 7,180,712.73

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Solution

The fourth proportional to 18,696,087.86, 28,047,767.65 and 7,180,712.73 is: 10,772,465.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,696,087.86 : 28,047,767.65 = 7,180,712.73 : x
  2. Step 2: Convert to fraction form
    18,696,087.86/28,047,767.65 = 7,180,712.73/x
  3. Step 3: Cross multiply
    18,696,087.86x = 28,047,767.65 × 7,180,712.73
  4. Step 4: Simplify right side
    18,696,087.86x = 201,402,962,194,485.41
  5. Step 5: Solve for x
    x = 201,402,962,194,485.41/18,696,087.86
  6. Step 6: Final answer
    x = 10,772,465.54

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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.