Home / 243,727,068.52-336,343,354.55-139,307,381.86

Finding the Fourth Proportional to 243,727,068.52, 336,343,354.55 and 139,307,381.86

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Solution

The fourth proportional to 243,727,068.52, 336,343,354.55 and 139,307,381.86 is: 192,244,186.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,727,068.52 : 336,343,354.55 = 139,307,381.86 : x
  2. Step 2: Convert to fraction form
    243,727,068.52/336,343,354.55 = 139,307,381.86/x
  3. Step 3: Cross multiply
    243,727,068.52x = 336,343,354.55 × 139,307,381.86
  4. Step 4: Simplify right side
    243,727,068.52x = 46,855,112,128,593,968
  5. Step 5: Solve for x
    x = 46,855,112,128,593,968/243,727,068.52
  6. Step 6: Final answer
    x = 192,244,186.97

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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.