Home / 30,223,891.80-45,335,837.70-18,130,656.60

Finding the Fourth Proportional to 30,223,891.80, 45,335,837.70 and 18,130,656.60

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Solution

The fourth proportional to 30,223,891.80, 45,335,837.70 and 18,130,656.60 is: 27,195,984.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,223,891.80 : 45,335,837.70 = 18,130,656.60 : x
  2. Step 2: Convert to fraction form
    30,223,891.80/45,335,837.70 = 18,130,656.60/x
  3. Step 3: Cross multiply
    30,223,891.80x = 45,335,837.70 × 18,130,656.60
  4. Step 4: Simplify right side
    30,223,891.80x = 821,968,505,012,034
  5. Step 5: Solve for x
    x = 821,968,505,012,034/30,223,891.80
  6. Step 6: Final answer
    x = 27,195,984.90

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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.