Home / 28,833,128.89-39,789,823.32-15,602,305.92

Finding the Fourth Proportional to 28,833,128.89, 39,789,823.32 and 15,602,305.92

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Solution

The fourth proportional to 28,833,128.89, 39,789,823.32 and 15,602,305.92 is: 21,531,239.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,833,128.89 : 39,789,823.32 = 15,602,305.92 : x
  2. Step 2: Convert to fraction form
    28,833,128.89/39,789,823.32 = 15,602,305.92/x
  3. Step 3: Cross multiply
    28,833,128.89x = 39,789,823.32 × 15,602,305.92
  4. Step 4: Simplify right side
    28,833,128.89x = 620,812,995,941,390
  5. Step 5: Solve for x
    x = 620,812,995,941,390/28,833,128.89
  6. Step 6: Final answer
    x = 21,531,239.23

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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.