Home / 479,682,695.61-661,966,683.46-281,447,562.69

Finding the Fourth Proportional to 479,682,695.61, 661,966,683.46 and 281,447,562.69

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Solution

The fourth proportional to 479,682,695.61, 661,966,683.46 and 281,447,562.69 is: 388,400,314.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,682,695.61 : 661,966,683.46 = 281,447,562.69 : x
  2. Step 2: Convert to fraction form
    479,682,695.61/661,966,683.46 = 281,447,562.69/x
  3. Step 3: Cross multiply
    479,682,695.61x = 661,966,683.46 × 281,447,562.69
  4. Step 4: Simplify right side
    479,682,695.61x = 186,308,909,641,096,096
  5. Step 5: Solve for x
    x = 186,308,909,641,096,096/479,682,695.61
  6. Step 6: Final answer
    x = 388,400,314.10

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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.