Home / 81,490,689.56-122,286,312.36-37,763,297.54

Finding the Fourth Proportional to 81,490,689.56, 122,286,312.36 and 37,763,297.54

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Solution

The fourth proportional to 81,490,689.56, 122,286,312.36 and 37,763,297.54 is: 56,668,245.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,490,689.56 : 122,286,312.36 = 37,763,297.54 : x
  2. Step 2: Convert to fraction form
    81,490,689.56/122,286,312.36 = 37,763,297.54/x
  3. Step 3: Cross multiply
    81,490,689.56x = 122,286,312.36 × 37,763,297.54
  4. Step 4: Simplify right side
    81,490,689.56x = 4,617,934,398,531,243
  5. Step 5: Solve for x
    x = 4,617,934,398,531,243/81,490,689.56
  6. Step 6: Final answer
    x = 56,668,245.46

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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.