Home / 243,727,076.35-336,343,365.38-139,307,389.72

Finding the Fourth Proportional to 243,727,076.35, 336,343,365.38 and 139,307,389.72

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Solution

The fourth proportional to 243,727,076.35, 336,343,365.38 and 139,307,389.72 is: 192,244,197.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,727,076.35 : 336,343,365.38 = 139,307,389.72 : x
  2. Step 2: Convert to fraction form
    243,727,076.35/336,343,365.38 = 139,307,389.72/x
  3. Step 3: Cross multiply
    243,727,076.35x = 336,343,365.38 × 139,307,389.72
  4. Step 4: Simplify right side
    243,727,076.35x = 46,855,116,280,728,016
  5. Step 5: Solve for x
    x = 46,855,116,280,728,016/243,727,076.35
  6. Step 6: Final answer
    x = 192,244,197.82

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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.