Home / 7,444,139.70-11,166,209.55-7,129,211.70

Finding the Fourth Proportional to 7,444,139.70, 11,166,209.55 and 7,129,211.70

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Solution

The fourth proportional to 7,444,139.70, 11,166,209.55 and 7,129,211.70 is: 10,693,817.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,444,139.70 : 11,166,209.55 = 7,129,211.70 : x
  2. Step 2: Convert to fraction form
    7,444,139.70/11,166,209.55 = 7,129,211.70/x
  3. Step 3: Cross multiply
    7,444,139.70x = 11,166,209.55 × 7,129,211.70
  4. Step 4: Simplify right side
    7,444,139.70x = 79,606,271,768,511.75
  5. Step 5: Solve for x
    x = 79,606,271,768,511.75/7,444,139.70
  6. Step 6: Final answer
    x = 10,693,817.55

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Similar ratio
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1.5x scale

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.