Home / 20,127,567.69-30,163,419.39-9,170,980.89

Finding the Fourth Proportional to 20,127,567.69, 30,163,419.39 and 9,170,980.89

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Solution

The fourth proportional to 20,127,567.69, 30,163,419.39 and 9,170,980.89 is: 13,743,744.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,127,567.69 : 30,163,419.39 = 9,170,980.89 : x
  2. Step 2: Convert to fraction form
    20,127,567.69/30,163,419.39 = 9,170,980.89/x
  3. Step 3: Cross multiply
    20,127,567.69x = 30,163,419.39 × 9,170,980.89
  4. Step 4: Simplify right side
    20,127,567.69x = 276,628,142,724,023.84
  5. Step 5: Solve for x
    x = 276,628,142,724,023.84/20,127,567.69
  6. Step 6: Final answer
    x = 13,743,744.25

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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.