Home / 14,172,920.80-21,262,491.60-6,987,896.80

Finding the Fourth Proportional to 14,172,920.80, 21,262,491.60 and 6,987,896.80

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Solution

The fourth proportional to 14,172,920.80, 21,262,491.60 and 6,987,896.80 is: 10,483,378.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,172,920.80 : 21,262,491.60 = 6,987,896.80 : x
  2. Step 2: Convert to fraction form
    14,172,920.80/21,262,491.60 = 6,987,896.80/x
  3. Step 3: Cross multiply
    14,172,920.80x = 21,262,491.60 × 6,987,896.80
  4. Step 4: Simplify right side
    14,172,920.80x = 148,580,097,011,666.88
  5. Step 5: Solve for x
    x = 148,580,097,011,666.88/14,172,920.80
  6. Step 6: Final answer
    x = 10,483,378.77

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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.