Home / 154,243,714.46-212,856,738.53-83,679,324.47

Finding the Fourth Proportional to 154,243,714.46, 212,856,738.53 and 83,679,324.47

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Solution

The fourth proportional to 154,243,714.46, 212,856,738.53 and 83,679,324.47 is: 115,477,691.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,243,714.46 : 212,856,738.53 = 83,679,324.47 : x
  2. Step 2: Convert to fraction form
    154,243,714.46/212,856,738.53 = 83,679,324.47/x
  3. Step 3: Cross multiply
    154,243,714.46x = 212,856,738.53 × 83,679,324.47
  4. Step 4: Simplify right side
    154,243,714.46x = 17,811,708,088,682,342
  5. Step 5: Solve for x
    x = 17,811,708,088,682,342/154,243,714.46
  6. Step 6: Final answer
    x = 115,477,691.59

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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.