Home / 28,482,421.89-39,305,584.73-15,429,935.68

Finding the Fourth Proportional to 28,482,421.89, 39,305,584.73 and 15,429,935.68

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Solution

The fourth proportional to 28,482,421.89, 39,305,584.73 and 15,429,935.68 is: 21,293,225.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,482,421.89 : 39,305,584.73 = 15,429,935.68 : x
  2. Step 2: Convert to fraction form
    28,482,421.89/39,305,584.73 = 15,429,935.68/x
  3. Step 3: Cross multiply
    28,482,421.89x = 39,305,584.73 × 15,429,935.68
  4. Step 4: Simplify right side
    28,482,421.89x = 606,482,644,410,095
  5. Step 5: Solve for x
    x = 606,482,644,410,095/28,482,421.89
  6. Step 6: Final answer
    x = 21,293,225.93

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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.