Home / 18,756,894.83-28,134,817.36-5,978,166.35

Finding the Fourth Proportional to 18,756,894.83, 28,134,817.36 and 5,978,166.35

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Solution

The fourth proportional to 18,756,894.83, 28,134,817.36 and 5,978,166.35 is: 8,967,082.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,756,894.83 : 28,134,817.36 = 5,978,166.35 : x
  2. Step 2: Convert to fraction form
    18,756,894.83/28,134,817.36 = 5,978,166.35/x
  3. Step 3: Cross multiply
    18,756,894.83x = 28,134,817.36 × 5,978,166.35
  4. Step 4: Simplify right side
    18,756,894.83x = 168,194,618,404,947.81
  5. Step 5: Solve for x
    x = 168,194,618,404,947.81/18,756,894.83
  6. Step 6: Final answer
    x = 8,967,082.23

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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.