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Finding the Fourth Proportional to 5,183,555.60, 7,773,000.60 and 1,987,619.60

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Solution

The fourth proportional to 5,183,555.60, 7,773,000.60 and 1,987,619.60 is: 2,980,534.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,183,555.60 : 7,773,000.60 = 1,987,619.60 : x
  2. Step 2: Convert to fraction form
    5,183,555.60/7,773,000.60 = 1,987,619.60/x
  3. Step 3: Cross multiply
    5,183,555.60x = 7,773,000.60 × 1,987,619.60
  4. Step 4: Simplify right side
    5,183,555.60x = 15,449,768,343,371.76
  5. Step 5: Solve for x
    x = 15,449,768,343,371.76/5,183,555.60
  6. Step 6: Final answer
    x = 2,980,534.89

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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.