Home / 28,686,689.92-39,586,476.70-15,633,667.90

Finding the Fourth Proportional to 28,686,689.92, 39,586,476.70 and 15,633,667.90

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Solution

The fourth proportional to 28,686,689.92, 39,586,476.70 and 15,633,667.90 is: 21,573,832.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,686,689.92 : 39,586,476.70 = 15,633,667.90 : x
  2. Step 2: Convert to fraction form
    28,686,689.92/39,586,476.70 = 15,633,667.90/x
  3. Step 3: Cross multiply
    28,686,689.92x = 39,586,476.70 × 15,633,667.90
  4. Step 4: Simplify right side
    28,686,689.92x = 618,881,830,058,888
  5. Step 5: Solve for x
    x = 618,881,830,058,888/28,686,689.92
  6. Step 6: Final answer
    x = 21,573,832.04

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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.