Home / 9,291,220.68-12,821,528.02-5,161,511.81

Finding the Fourth Proportional to 9,291,220.68, 12,821,528.02 and 5,161,511.81

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Solution

The fourth proportional to 9,291,220.68, 12,821,528.02 and 5,161,511.81 is: 7,122,688.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,291,220.68 : 12,821,528.02 = 5,161,511.81 : x
  2. Step 2: Convert to fraction form
    9,291,220.68/12,821,528.02 = 5,161,511.81/x
  3. Step 3: Cross multiply
    9,291,220.68x = 12,821,528.02 × 5,161,511.81
  4. Step 4: Simplify right side
    9,291,220.68x = 66,178,468,297,475.91
  5. Step 5: Solve for x
    x = 66,178,468,297,475.91/9,291,220.68
  6. Step 6: Final answer
    x = 7,122,688.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.