Home / 20,111,140.30-30,166,710.45-6,647,968.30

Finding the Fourth Proportional to 20,111,140.30, 30,166,710.45 and 6,647,968.30

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Solution

The fourth proportional to 20,111,140.30, 30,166,710.45 and 6,647,968.30 is: 9,971,952.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,111,140.30 : 30,166,710.45 = 6,647,968.30 : x
  2. Step 2: Convert to fraction form
    20,111,140.30/30,166,710.45 = 6,647,968.30/x
  3. Step 3: Cross multiply
    20,111,140.30x = 30,166,710.45 × 6,647,968.30
  4. Step 4: Simplify right side
    20,111,140.30x = 200,547,334,786,878.72
  5. Step 5: Solve for x
    x = 200,547,334,786,878.72/20,111,140.30
  6. Step 6: Final answer
    x = 9,971,952.45

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Double scale
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Similar ratio
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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.