Home / 20,759,940.70-31,139,911.05-11,194,002.70

Finding the Fourth Proportional to 20,759,940.70, 31,139,911.05 and 11,194,002.70

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Solution

The fourth proportional to 20,759,940.70, 31,139,911.05 and 11,194,002.70 is: 16,791,004.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,759,940.70 : 31,139,911.05 = 11,194,002.70 : x
  2. Step 2: Convert to fraction form
    20,759,940.70/31,139,911.05 = 11,194,002.70/x
  3. Step 3: Cross multiply
    20,759,940.70x = 31,139,911.05 × 11,194,002.70
  4. Step 4: Simplify right side
    20,759,940.70x = 348,580,248,371,459.81
  5. Step 5: Solve for x
    x = 348,580,248,371,459.81/20,759,940.70
  6. Step 6: Final answer
    x = 16,791,004.05

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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.