Home / 243,727,072.90-336,343,360.61-139,307,386.24

Finding the Fourth Proportional to 243,727,072.90, 336,343,360.61 and 139,307,386.24

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Solution

The fourth proportional to 243,727,072.90, 336,343,360.61 and 139,307,386.24 is: 192,244,193.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,727,072.90 : 336,343,360.61 = 139,307,386.24 : x
  2. Step 2: Convert to fraction form
    243,727,072.90/336,343,360.61 = 139,307,386.24/x
  3. Step 3: Cross multiply
    243,727,072.90x = 336,343,360.61 × 139,307,386.24
  4. Step 4: Simplify right side
    243,727,072.90x = 46,855,114,445,756,880
  5. Step 5: Solve for x
    x = 46,855,114,445,756,880/243,727,072.90
  6. Step 6: Final answer
    x = 192,244,193.02

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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.