Home / 21,439,869.51-29,584,618.14-12,145,448.52

Finding the Fourth Proportional to 21,439,869.51, 29,584,618.14 and 12,145,448.52

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Solution

The fourth proportional to 21,439,869.51, 29,584,618.14 and 12,145,448.52 is: 16,759,358.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,439,869.51 : 29,584,618.14 = 12,145,448.52 : x
  2. Step 2: Convert to fraction form
    21,439,869.51/29,584,618.14 = 12,145,448.52/x
  3. Step 3: Cross multiply
    21,439,869.51x = 29,584,618.14 × 12,145,448.52
  4. Step 4: Simplify right side
    21,439,869.51x = 359,318,456,603,228.12
  5. Step 5: Solve for x
    x = 359,318,456,603,228.12/21,439,869.51
  6. Step 6: Final answer
    x = 16,759,358.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.