Home / 20,606,605.60-30,909,908.40-18,087,181.60

Finding the Fourth Proportional to 20,606,605.60, 30,909,908.40 and 18,087,181.60

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Solution

The fourth proportional to 20,606,605.60, 30,909,908.40 and 18,087,181.60 is: 27,130,772.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,606,605.60 : 30,909,908.40 = 18,087,181.60 : x
  2. Step 2: Convert to fraction form
    20,606,605.60/30,909,908.40 = 18,087,181.60/x
  3. Step 3: Cross multiply
    20,606,605.60x = 30,909,908.40 × 18,087,181.60
  4. Step 4: Simplify right side
    20,606,605.60x = 559,073,126,470,165.44
  5. Step 5: Solve for x
    x = 559,073,126,470,165.44/20,606,605.60
  6. Step 6: Final answer
    x = 27,130,772.40

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1.5x scale

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.