Home / 28,723,998.51-39,639,072.60-15,671,258.57

Finding the Fourth Proportional to 28,723,998.51, 39,639,072.60 and 15,671,258.57

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Solution

The fourth proportional to 28,723,998.51, 39,639,072.60 and 15,671,258.57 is: 21,626,312.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,723,998.51 : 39,639,072.60 = 15,671,258.57 : x
  2. Step 2: Convert to fraction form
    28,723,998.51/39,639,072.60 = 15,671,258.57/x
  3. Step 3: Cross multiply
    28,723,998.51x = 39,639,072.60 × 15,671,258.57
  4. Step 4: Simplify right side
    28,723,998.51x = 621,194,156,288,699.88
  5. Step 5: Solve for x
    x = 621,194,156,288,699.88/28,723,998.51
  6. Step 6: Final answer
    x = 21,626,312.09

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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.