Home / 12,090,304.80-18,111,837.60-7,283,716.20

Finding the Fourth Proportional to 12,090,304.80, 18,111,837.60 and 7,283,716.20

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Solution

The fourth proportional to 12,090,304.80, 18,111,837.60 and 7,283,716.20 is: 10,911,344.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,090,304.80 : 18,111,837.60 = 7,283,716.20 : x
  2. Step 2: Convert to fraction form
    12,090,304.80/18,111,837.60 = 7,283,716.20/x
  3. Step 3: Cross multiply
    12,090,304.80x = 18,111,837.60 × 7,283,716.20
  4. Step 4: Simplify right side
    12,090,304.80x = 131,921,484,938,889.14
  5. Step 5: Solve for x
    x = 131,921,484,938,889.14/12,090,304.80
  6. Step 6: Final answer
    x = 10,911,344.84

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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.