Home / 109,040,465.70-163,560,698.55-78,429,464.10

Finding the Fourth Proportional to 109,040,465.70, 163,560,698.55 and 78,429,464.10

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Solution

The fourth proportional to 109,040,465.70, 163,560,698.55 and 78,429,464.10 is: 117,644,196.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,040,465.70 : 163,560,698.55 = 78,429,464.10 : x
  2. Step 2: Convert to fraction form
    109,040,465.70/163,560,698.55 = 78,429,464.10/x
  3. Step 3: Cross multiply
    109,040,465.70x = 163,560,698.55 × 78,429,464.10
  4. Step 4: Simplify right side
    109,040,465.70x = 12,827,977,935,098,148
  5. Step 5: Solve for x
    x = 12,827,977,935,098,148/109,040,465.70
  6. Step 6: Final answer
    x = 117,644,196.15

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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.