Home / 12,781,446,126.70-19,172,169,190.05-9,682,082,214.70

Finding the Fourth Proportional to 12,781,446,126.70, 19,172,169,190.05 and 9,682,082,214.70

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Solution

The fourth proportional to 12,781,446,126.70, 19,172,169,190.05 and 9,682,082,214.70 is: 14,523,123,322.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,781,446,126.70 : 19,172,169,190.05 = 9,682,082,214.70 : x
  2. Step 2: Convert to fraction form
    12,781,446,126.70/19,172,169,190.05 = 9,682,082,214.70/x
  3. Step 3: Cross multiply
    12,781,446,126.70x = 19,172,169,190.05 × 9,682,082,214.70
  4. Step 4: Simplify right side
    12,781,446,126.70x = 185,626,518,332,202,418,176
  5. Step 5: Solve for x
    x = 185,626,518,332,202,418,176/12,781,446,126.70
  6. Step 6: Final answer
    x = 14,523,123,322.05

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Double scale
Find fourth proportional to 12,781,446,127.70, 19,172,169,191.55 and 9,682,082,215.70
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.