Home / 20,501,205.40-30,756,473.70-11,977,154.20

Finding the Fourth Proportional to 20,501,205.40, 30,756,473.70 and 11,977,154.20

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Solution

The fourth proportional to 20,501,205.40, 30,756,473.70 and 11,977,154.20 is: 17,968,457.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,501,205.40 : 30,756,473.70 = 11,977,154.20 : x
  2. Step 2: Convert to fraction form
    20,501,205.40/30,756,473.70 = 11,977,154.20/x
  3. Step 3: Cross multiply
    20,501,205.40x = 30,756,473.70 × 11,977,154.20
  4. Step 4: Simplify right side
    20,501,205.40x = 368,375,028,153,144.50
  5. Step 5: Solve for x
    x = 368,375,028,153,144.50/20,501,205.40
  6. Step 6: Final answer
    x = 17,968,457.02

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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.