Home / 20,859,629.60-31,289,444.40-18,844,090.40

Finding the Fourth Proportional to 20,859,629.60, 31,289,444.40 and 18,844,090.40

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Solution

The fourth proportional to 20,859,629.60, 31,289,444.40 and 18,844,090.40 is: 28,266,135.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,859,629.60 : 31,289,444.40 = 18,844,090.40 : x
  2. Step 2: Convert to fraction form
    20,859,629.60/31,289,444.40 = 18,844,090.40/x
  3. Step 3: Cross multiply
    20,859,629.60x = 31,289,444.40 × 18,844,090.40
  4. Step 4: Simplify right side
    20,859,629.60x = 589,621,118,839,373.62
  5. Step 5: Solve for x
    x = 589,621,118,839,373.62/20,859,629.60
  6. Step 6: Final answer
    x = 28,266,135.60

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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.