Home / 20,030,999.51-30,046,452.54-13,157,863.71

Finding the Fourth Proportional to 20,030,999.51, 30,046,452.54 and 13,157,863.71

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Solution

The fourth proportional to 20,030,999.51, 30,046,452.54 and 13,157,863.71 is: 19,736,764.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,030,999.51 : 30,046,452.54 = 13,157,863.71 : x
  2. Step 2: Convert to fraction form
    20,030,999.51/30,046,452.54 = 13,157,863.71/x
  3. Step 3: Cross multiply
    20,030,999.51x = 30,046,452.54 × 13,157,863.71
  4. Step 4: Simplify right side
    20,030,999.51x = 395,347,127,490,303.31
  5. Step 5: Solve for x
    x = 395,347,127,490,303.31/20,030,999.51
  6. Step 6: Final answer
    x = 19,736,764.87

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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.