Home / 11,999,943-18,001,784.16-3,911,041.80

Finding the Fourth Proportional to 11,999,943, 18,001,784.16 and 3,911,041.80

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Solution

The fourth proportional to 11,999,943, 18,001,784.16 and 3,911,041.80 is: 5,867,172.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,999,943 : 18,001,784.16 = 3,911,041.80 : x
  2. Step 2: Convert to fraction form
    11,999,943/18,001,784.16 = 3,911,041.80/x
  3. Step 3: Cross multiply
    11,999,943x = 18,001,784.16 × 3,911,041.80
  4. Step 4: Simplify right side
    11,999,943x = 70,405,730,324,337.89
  5. Step 5: Solve for x
    x = 70,405,730,324,337.89/11,999,943
  6. Step 6: Final answer
    x = 5,867,172.06

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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.