Home / 429,557,439.78-644,072,455.06-166,935,342.31

Finding the Fourth Proportional to 429,557,439.78, 644,072,455.06 and 166,935,342.31

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Solution

The fourth proportional to 429,557,439.78, 644,072,455.06 and 166,935,342.31 is: 250,300,532.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,557,439.78 : 644,072,455.06 = 166,935,342.31 : x
  2. Step 2: Convert to fraction form
    429,557,439.78/644,072,455.06 = 166,935,342.31/x
  3. Step 3: Cross multiply
    429,557,439.78x = 644,072,455.06 × 166,935,342.31
  4. Step 4: Simplify right side
    429,557,439.78x = 107,518,455,755,855,680
  5. Step 5: Solve for x
    x = 107,518,455,755,855,680/429,557,439.78
  6. Step 6: Final answer
    x = 250,300,532.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.