Home / 21,235,743.78-31,833,434.16-13,537,783.83

Finding the Fourth Proportional to 21,235,743.78, 31,833,434.16 and 13,537,783.83

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Solution

The fourth proportional to 21,235,743.78, 31,833,434.16 and 13,537,783.83 is: 20,293,810.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,235,743.78 : 31,833,434.16 = 13,537,783.83 : x
  2. Step 2: Convert to fraction form
    21,235,743.78/31,833,434.16 = 13,537,783.83/x
  3. Step 3: Cross multiply
    21,235,743.78x = 31,833,434.16 × 13,537,783.83
  4. Step 4: Simplify right side
    21,235,743.78x = 430,954,150,343,993
  5. Step 5: Solve for x
    x = 430,954,150,343,993/21,235,743.78
  6. Step 6: Final answer
    x = 20,293,810.04

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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.