Home / 21,030,112.30-31,545,168.45-9,692,704.30

Finding the Fourth Proportional to 21,030,112.30, 31,545,168.45 and 9,692,704.30

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Solution

The fourth proportional to 21,030,112.30, 31,545,168.45 and 9,692,704.30 is: 14,539,056.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,030,112.30 : 31,545,168.45 = 9,692,704.30 : x
  2. Step 2: Convert to fraction form
    21,030,112.30/31,545,168.45 = 9,692,704.30/x
  3. Step 3: Cross multiply
    21,030,112.30x = 31,545,168.45 × 9,692,704.30
  4. Step 4: Simplify right side
    21,030,112.30x = 305,757,989,879,539.38
  5. Step 5: Solve for x
    x = 305,757,989,879,539.38/21,030,112.30
  6. Step 6: Final answer
    x = 14,539,056.45

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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.