Home / 81,551,034.45-122,326,551.68-45,271,328.85

Finding the Fourth Proportional to 81,551,034.45, 122,326,551.68 and 45,271,328.85

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Solution

The fourth proportional to 81,551,034.45, 122,326,551.68 and 45,271,328.85 is: 67,906,993.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,551,034.45 : 122,326,551.68 = 45,271,328.85 : x
  2. Step 2: Convert to fraction form
    81,551,034.45/122,326,551.68 = 45,271,328.85/x
  3. Step 3: Cross multiply
    81,551,034.45x = 122,326,551.68 × 45,271,328.85
  4. Step 4: Simplify right side
    81,551,034.45x = 5,537,885,547,965,443
  5. Step 5: Solve for x
    x = 5,537,885,547,965,443/81,551,034.45
  6. Step 6: Final answer
    x = 67,906,993.28

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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.