Home / 7,381,987.20-11,072,980.80-7,216,099.20

Finding the Fourth Proportional to 7,381,987.20, 11,072,980.80 and 7,216,099.20

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Solution

The fourth proportional to 7,381,987.20, 11,072,980.80 and 7,216,099.20 is: 10,824,148.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,381,987.20 : 11,072,980.80 = 7,216,099.20 : x
  2. Step 2: Convert to fraction form
    7,381,987.20/11,072,980.80 = 7,216,099.20/x
  3. Step 3: Cross multiply
    7,381,987.20x = 11,072,980.80 × 7,216,099.20
  4. Step 4: Simplify right side
    7,381,987.20x = 79,903,727,892,495.38
  5. Step 5: Solve for x
    x = 79,903,727,892,495.38/7,381,987.20
  6. Step 6: Final answer
    x = 10,824,148.80

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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.