Home / 18,677,003.40-28,019,441.70-7,888,751.10

Finding the Fourth Proportional to 18,677,003.40, 28,019,441.70 and 7,888,751.10

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Solution

The fourth proportional to 18,677,003.40, 28,019,441.70 and 7,888,751.10 is: 11,834,789.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,677,003.40 : 28,019,441.70 = 7,888,751.10 : x
  2. Step 2: Convert to fraction form
    18,677,003.40/28,019,441.70 = 7,888,751.10/x
  3. Step 3: Cross multiply
    18,677,003.40x = 28,019,441.70 × 7,888,751.10
  4. Step 4: Simplify right side
    18,677,003.40x = 221,038,401,532,260.84
  5. Step 5: Solve for x
    x = 221,038,401,532,260.84/18,677,003.40
  6. Step 6: Final answer
    x = 11,834,789.38

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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.