Home / 20,980,080.12-28,742,812.33-20,193,752.50

Finding the Fourth Proportional to 20,980,080.12, 28,742,812.33 and 20,193,752.50

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Solution

The fourth proportional to 20,980,080.12, 28,742,812.33 and 20,193,752.50 is: 27,665,539.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,980,080.12 : 28,742,812.33 = 20,193,752.50 : x
  2. Step 2: Convert to fraction form
    20,980,080.12/28,742,812.33 = 20,193,752.50/x
  3. Step 3: Cross multiply
    20,980,080.12x = 28,742,812.33 × 20,193,752.50
  4. Step 4: Simplify right side
    20,980,080.12x = 580,425,238,345,968.25
  5. Step 5: Solve for x
    x = 580,425,238,345,968.25/20,980,080.12
  6. Step 6: Final answer
    x = 27,665,539.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.