Home / 81,413,949.78-122,020,874.58-37,635,490.52

Finding the Fourth Proportional to 81,413,949.78, 122,020,874.58 and 37,635,490.52

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Solution

The fourth proportional to 81,413,949.78, 122,020,874.58 and 37,635,490.52 is: 56,406,985.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,413,949.78 : 122,020,874.58 = 37,635,490.52 : x
  2. Step 2: Convert to fraction form
    81,413,949.78/122,020,874.58 = 37,635,490.52/x
  3. Step 3: Cross multiply
    81,413,949.78x = 122,020,874.58 × 37,635,490.52
  4. Step 4: Simplify right side
    81,413,949.78x = 4,592,315,468,497,699
  5. Step 5: Solve for x
    x = 4,592,315,468,497,699/81,413,949.78
  6. Step 6: Final answer
    x = 56,406,985.30

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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.