Home / 20,980,080.18-28,742,812.37-20,193,752.50

Finding the Fourth Proportional to 20,980,080.18, 28,742,812.37 and 20,193,752.50

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Solution

The fourth proportional to 20,980,080.18, 28,742,812.37 and 20,193,752.50 is: 27,665,539.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,980,080.18 : 28,742,812.37 = 20,193,752.50 : x
  2. Step 2: Convert to fraction form
    20,980,080.18/28,742,812.37 = 20,193,752.50/x
  3. Step 3: Cross multiply
    20,980,080.18x = 28,742,812.37 × 20,193,752.50
  4. Step 4: Simplify right side
    20,980,080.18x = 580,425,239,132,345.75
  5. Step 5: Solve for x
    x = 580,425,239,132,345.75/20,980,080.18
  6. Step 6: Final answer
    x = 27,665,539.60

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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.