Home / 28,908,429.39-39,893,690.09-15,855,795.56

Finding the Fourth Proportional to 28,908,429.39, 39,893,690.09 and 15,855,795.56

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Solution

The fourth proportional to 28,908,429.39, 39,893,690.09 and 15,855,795.56 is: 21,881,029.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,908,429.39 : 39,893,690.09 = 15,855,795.56 : x
  2. Step 2: Convert to fraction form
    28,908,429.39/39,893,690.09 = 15,855,795.56/x
  3. Step 3: Cross multiply
    28,908,429.39x = 39,893,690.09 × 15,855,795.56
  4. Step 4: Simplify right side
    28,908,429.39x = 632,546,194,340,411.75
  5. Step 5: Solve for x
    x = 632,546,194,340,411.75/28,908,429.39
  6. Step 6: Final answer
    x = 21,881,029.43

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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.