Home / 20,389,985.20-30,584,977.80-6,926,813.20

Finding the Fourth Proportional to 20,389,985.20, 30,584,977.80 and 6,926,813.20

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Solution

The fourth proportional to 20,389,985.20, 30,584,977.80 and 6,926,813.20 is: 10,390,219.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,389,985.20 : 30,584,977.80 = 6,926,813.20 : x
  2. Step 2: Convert to fraction form
    20,389,985.20/30,584,977.80 = 6,926,813.20/x
  3. Step 3: Cross multiply
    20,389,985.20x = 30,584,977.80 × 6,926,813.20
  4. Step 4: Simplify right side
    20,389,985.20x = 211,856,427,946,746.97
  5. Step 5: Solve for x
    x = 211,856,427,946,746.97/20,389,985.20
  6. Step 6: Final answer
    x = 10,390,219.80

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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.