Home / 21,312,130.60-31,972,343.10-9,181,570.60

Finding the Fourth Proportional to 21,312,130.60, 31,972,343.10 and 9,181,570.60

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Solution

The fourth proportional to 21,312,130.60, 31,972,343.10 and 9,181,570.60 is: 13,774,142.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,312,130.60 : 31,972,343.10 = 9,181,570.60 : x
  2. Step 2: Convert to fraction form
    21,312,130.60/31,972,343.10 = 9,181,570.60/x
  3. Step 3: Cross multiply
    21,312,130.60x = 31,972,343.10 × 9,181,570.60
  4. Step 4: Simplify right side
    21,312,130.60x = 293,556,325,420,072.88
  5. Step 5: Solve for x
    x = 293,556,325,420,072.88/21,312,130.60
  6. Step 6: Final answer
    x = 13,774,142.57

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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.