Home / 210,384,024.40-315,576,036.60-137,824,613.20

Finding the Fourth Proportional to 210,384,024.40, 315,576,036.60 and 137,824,613.20

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Solution

The fourth proportional to 210,384,024.40, 315,576,036.60 and 137,824,613.20 is: 206,736,919.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,384,024.40 : 315,576,036.60 = 137,824,613.20 : x
  2. Step 2: Convert to fraction form
    210,384,024.40/315,576,036.60 = 137,824,613.20/x
  3. Step 3: Cross multiply
    210,384,024.40x = 315,576,036.60 × 137,824,613.20
  4. Step 4: Simplify right side
    210,384,024.40x = 43,494,145,179,584,040
  5. Step 5: Solve for x
    x = 43,494,145,179,584,040/210,384,024.40
  6. Step 6: Final answer
    x = 206,736,919.80

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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.