Home / 10,939,211.28-16,398,299.88-7,345,980

Finding the Fourth Proportional to 10,939,211.28, 16,398,299.88 and 7,345,980

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Solution

The fourth proportional to 10,939,211.28, 16,398,299.88 and 7,345,980 is: 11,011,907.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,939,211.28 : 16,398,299.88 = 7,345,980 : x
  2. Step 2: Convert to fraction form
    10,939,211.28/16,398,299.88 = 7,345,980/x
  3. Step 3: Cross multiply
    10,939,211.28x = 16,398,299.88 × 7,345,980
  4. Step 4: Simplify right side
    10,939,211.28x = 120,461,582,952,482.41
  5. Step 5: Solve for x
    x = 120,461,582,952,482.41/10,939,211.28
  6. Step 6: Final answer
    x = 11,011,907.52

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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.