Home / 13,779,911.20-20,669,866.80-4,195,213.60

Finding the Fourth Proportional to 13,779,911.20, 20,669,866.80 and 4,195,213.60

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Solution

The fourth proportional to 13,779,911.20, 20,669,866.80 and 4,195,213.60 is: 6,292,820.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,779,911.20 : 20,669,866.80 = 4,195,213.60 : x
  2. Step 2: Convert to fraction form
    13,779,911.20/20,669,866.80 = 4,195,213.60/x
  3. Step 3: Cross multiply
    13,779,911.20x = 20,669,866.80 × 4,195,213.60
  4. Step 4: Simplify right side
    13,779,911.20x = 86,714,506,309,548.47
  5. Step 5: Solve for x
    x = 86,714,506,309,548.47/13,779,911.20
  6. Step 6: Final answer
    x = 6,292,820.40

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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.