Home / 51,729,459.57-77,596,022.12-12,868,113.87

Finding the Fourth Proportional to 51,729,459.57, 77,596,022.12 and 12,868,113.87

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Solution

The fourth proportional to 51,729,459.57, 77,596,022.12 and 12,868,113.87 is: 19,302,626.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,729,459.57 : 77,596,022.12 = 12,868,113.87 : x
  2. Step 2: Convert to fraction form
    51,729,459.57/77,596,022.12 = 12,868,113.87/x
  3. Step 3: Cross multiply
    51,729,459.57x = 77,596,022.12 × 12,868,113.87
  4. Step 4: Simplify right side
    51,729,459.57x = 998,514,448,434,858.12
  5. Step 5: Solve for x
    x = 998,514,448,434,858.12/51,729,459.57
  6. Step 6: Final answer
    x = 19,302,626.72

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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.