Home / 309,824,061.70-427,564,872.26-168,703,018.58

Finding the Fourth Proportional to 309,824,061.70, 427,564,872.26 and 168,703,018.58

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Solution

The fourth proportional to 309,824,061.70, 427,564,872.26 and 168,703,018.58 is: 232,814,340.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,824,061.70 : 427,564,872.26 = 168,703,018.58 : x
  2. Step 2: Convert to fraction form
    309,824,061.70/427,564,872.26 = 168,703,018.58/x
  3. Step 3: Cross multiply
    309,824,061.70x = 427,564,872.26 × 168,703,018.58
  4. Step 4: Simplify right side
    309,824,061.70x = 72,131,484,589,034,112
  5. Step 5: Solve for x
    x = 72,131,484,589,034,112/309,824,061.70
  6. Step 6: Final answer
    x = 232,814,340.48

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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.