Home / 12,771,743.58-19,140,981.21-5,189,845.50

Finding the Fourth Proportional to 12,771,743.58, 19,140,981.21 and 5,189,845.50

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Solution

The fourth proportional to 12,771,743.58, 19,140,981.21 and 5,189,845.50 is: 7,778,008.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,771,743.58 : 19,140,981.21 = 5,189,845.50 : x
  2. Step 2: Convert to fraction form
    12,771,743.58/19,140,981.21 = 5,189,845.50/x
  3. Step 3: Cross multiply
    12,771,743.58x = 19,140,981.21 × 5,189,845.50
  4. Step 4: Simplify right side
    12,771,743.58x = 99,338,735,198,303.06
  5. Step 5: Solve for x
    x = 99,338,735,198,303.06/12,771,743.58
  6. Step 6: Final answer
    x = 7,778,008.90

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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.