Home / 12,376,140.40-17,078,809.12-6,869,194.21

Finding the Fourth Proportional to 12,376,140.40, 17,078,809.12 and 6,869,194.21

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Solution

The fourth proportional to 12,376,140.40, 17,078,809.12 and 6,869,194.21 is: 9,479,341.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,376,140.40 : 17,078,809.12 = 6,869,194.21 : x
  2. Step 2: Convert to fraction form
    12,376,140.40/17,078,809.12 = 6,869,194.21/x
  3. Step 3: Cross multiply
    12,376,140.40x = 17,078,809.12 × 6,869,194.21
  4. Step 4: Simplify right side
    12,376,140.40x = 117,317,656,720,799.20
  5. Step 5: Solve for x
    x = 117,317,656,720,799.20/12,376,140.40
  6. Step 6: Final answer
    x = 9,479,341.13

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.