Home / 243,727,078.31-336,343,368.09-139,307,391.65

Finding the Fourth Proportional to 243,727,078.31, 336,343,368.09 and 139,307,391.65

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Solution

The fourth proportional to 243,727,078.31, 336,343,368.09 and 139,307,391.65 is: 192,244,200.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,727,078.31 : 336,343,368.09 = 139,307,391.65 : x
  2. Step 2: Convert to fraction form
    243,727,078.31/336,343,368.09 = 139,307,391.65/x
  3. Step 3: Cross multiply
    243,727,078.31x = 336,343,368.09 × 139,307,391.65
  4. Step 4: Simplify right side
    243,727,078.31x = 46,855,117,307,393,744
  5. Step 5: Solve for x
    x = 46,855,117,307,393,744/243,727,078.31
  6. Step 6: Final answer
    x = 192,244,200.49

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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.