Home / 20,030,996.51-30,046,448.04-13,157,860.71

Finding the Fourth Proportional to 20,030,996.51, 30,046,448.04 and 13,157,860.71

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Solution

The fourth proportional to 20,030,996.51, 30,046,448.04 and 13,157,860.71 is: 19,736,760.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,030,996.51 : 30,046,448.04 = 13,157,860.71 : x
  2. Step 2: Convert to fraction form
    20,030,996.51/30,046,448.04 = 13,157,860.71/x
  3. Step 3: Cross multiply
    20,030,996.51x = 30,046,448.04 × 13,157,860.71
  4. Step 4: Simplify right side
    20,030,996.51x = 395,346,978,140,572.50
  5. Step 5: Solve for x
    x = 395,346,978,140,572.50/20,030,996.51
  6. Step 6: Final answer
    x = 19,736,760.37

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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.