Home / 12,402,090.66-17,115,084.16-6,820,557.78

Finding the Fourth Proportional to 12,402,090.66, 17,115,084.16 and 6,820,557.78

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Solution

The fourth proportional to 12,402,090.66, 17,115,084.16 and 6,820,557.78 is: 9,412,479.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,402,090.66 : 17,115,084.16 = 6,820,557.78 : x
  2. Step 2: Convert to fraction form
    12,402,090.66/17,115,084.16 = 6,820,557.78/x
  3. Step 3: Cross multiply
    12,402,090.66x = 17,115,084.16 × 6,820,557.78
  4. Step 4: Simplify right side
    12,402,090.66x = 116,734,420,422,842.77
  5. Step 5: Solve for x
    x = 116,734,420,422,842.77/12,402,090.66
  6. Step 6: Final answer
    x = 9,412,479.20

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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.