Home / 13,290,000.90-19,929,096.45-5,200,287.90

Finding the Fourth Proportional to 13,290,000.90, 19,929,096.45 and 5,200,287.90

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Solution

The fourth proportional to 13,290,000.90, 19,929,096.45 and 5,200,287.90 is: 7,798,121.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,290,000.90 : 19,929,096.45 = 5,200,287.90 : x
  2. Step 2: Convert to fraction form
    13,290,000.90/19,929,096.45 = 5,200,287.90/x
  3. Step 3: Cross multiply
    13,290,000.90x = 19,929,096.45 × 5,200,287.90
  4. Step 4: Simplify right side
    13,290,000.90x = 103,637,039,126,867.95
  5. Step 5: Solve for x
    x = 103,637,039,126,867.95/13,290,000.90
  6. Step 6: Final answer
    x = 7,798,121.30

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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.