Home / 20,780,900.20-31,174,762.14-6,403,970.44

Finding the Fourth Proportional to 20,780,900.20, 31,174,762.14 and 6,403,970.44

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Solution

The fourth proportional to 20,780,900.20, 31,174,762.14 and 6,403,970.44 is: 9,607,007.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,780,900.20 : 31,174,762.14 = 6,403,970.44 : x
  2. Step 2: Convert to fraction form
    20,780,900.20/31,174,762.14 = 6,403,970.44/x
  3. Step 3: Cross multiply
    20,780,900.20x = 31,174,762.14 × 6,403,970.44
  4. Step 4: Simplify right side
    20,780,900.20x = 199,642,255,218,591.16
  5. Step 5: Solve for x
    x = 199,642,255,218,591.16/20,780,900.20
  6. Step 6: Final answer
    x = 9,607,007.07

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.