Home / 14,031,746.40-21,031,873.20-7,969,382.40

Finding the Fourth Proportional to 14,031,746.40, 21,031,873.20 and 7,969,382.40

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Solution

The fourth proportional to 14,031,746.40, 21,031,873.20 and 7,969,382.40 is: 11,945,130.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,031,746.40 : 21,031,873.20 = 7,969,382.40 : x
  2. Step 2: Convert to fraction form
    14,031,746.40/21,031,873.20 = 7,969,382.40/x
  3. Step 3: Cross multiply
    14,031,746.40x = 21,031,873.20 × 7,969,382.40
  4. Step 4: Simplify right side
    14,031,746.40x = 167,611,040,119,111.69
  5. Step 5: Solve for x
    x = 167,611,040,119,111.69/14,031,746.40
  6. Step 6: Final answer
    x = 11,945,130.37

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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.