Home / 20,827,200.30-31,240,800.45-15,788,352.30

Finding the Fourth Proportional to 20,827,200.30, 31,240,800.45 and 15,788,352.30

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Solution

The fourth proportional to 20,827,200.30, 31,240,800.45 and 15,788,352.30 is: 23,682,528.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,827,200.30 : 31,240,800.45 = 15,788,352.30 : x
  2. Step 2: Convert to fraction form
    20,827,200.30/31,240,800.45 = 15,788,352.30/x
  3. Step 3: Cross multiply
    20,827,200.30x = 31,240,800.45 × 15,788,352.30
  4. Step 4: Simplify right side
    20,827,200.30x = 493,240,763,638,598.56
  5. Step 5: Solve for x
    x = 493,240,763,638,598.56/20,827,200.30
  6. Step 6: Final answer
    x = 23,682,528.45

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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.