Home / 13,778,816.30-20,619,235.65-12,001,222.70

Finding the Fourth Proportional to 13,778,816.30, 20,619,235.65 and 12,001,222.70

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Solution

The fourth proportional to 13,778,816.30, 20,619,235.65 and 12,001,222.70 is: 17,959,165.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,778,816.30 : 20,619,235.65 = 12,001,222.70 : x
  2. Step 2: Convert to fraction form
    13,778,816.30/20,619,235.65 = 12,001,222.70/x
  3. Step 3: Cross multiply
    13,778,816.30x = 20,619,235.65 × 12,001,222.70
  4. Step 4: Simplify right side
    13,778,816.30x = 247,456,038,939,429.22
  5. Step 5: Solve for x
    x = 247,456,038,939,429.22/13,778,816.30
  6. Step 6: Final answer
    x = 17,959,165.25

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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.