Home / 15,886,703.84-21,921,896.93-8,915,782.46

Finding the Fourth Proportional to 15,886,703.84, 21,921,896.93 and 8,915,782.46

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Solution

The fourth proportional to 15,886,703.84, 21,921,896.93 and 8,915,782.46 is: 12,302,795.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,886,703.84 : 21,921,896.93 = 8,915,782.46 : x
  2. Step 2: Convert to fraction form
    15,886,703.84/21,921,896.93 = 8,915,782.46/x
  3. Step 3: Cross multiply
    15,886,703.84x = 21,921,896.93 × 8,915,782.46
  4. Step 4: Simplify right side
    15,886,703.84x = 195,450,863,984,233.47
  5. Step 5: Solve for x
    x = 195,450,863,984,233.47/15,886,703.84
  6. Step 6: Final answer
    x = 12,302,795.22

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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.