Home / 212,957,166.72-293,881,086.16-115,172,022.72

Finding the Fourth Proportional to 212,957,166.72, 293,881,086.16 and 115,172,022.72

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Solution

The fourth proportional to 212,957,166.72, 293,881,086.16 and 115,172,022.72 is: 158,937,497.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,957,166.72 : 293,881,086.16 = 115,172,022.72 : x
  2. Step 2: Convert to fraction form
    212,957,166.72/293,881,086.16 = 115,172,022.72/x
  3. Step 3: Cross multiply
    212,957,166.72x = 293,881,086.16 × 115,172,022.72
  4. Step 4: Simplify right side
    212,957,166.72x = 33,846,879,132,197,800
  5. Step 5: Solve for x
    x = 33,846,879,132,197,800/212,957,166.72
  6. Step 6: Final answer
    x = 158,937,497.40

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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.