Home / 28,686,685.79-39,586,470.99-15,633,663.77

Finding the Fourth Proportional to 28,686,685.79, 39,586,470.99 and 15,633,663.77

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Solution

The fourth proportional to 28,686,685.79, 39,586,470.99 and 15,633,663.77 is: 21,573,826.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,686,685.79 : 39,586,470.99 = 15,633,663.77 : x
  2. Step 2: Convert to fraction form
    28,686,685.79/39,586,470.99 = 15,633,663.77/x
  3. Step 3: Cross multiply
    28,686,685.79x = 39,586,470.99 × 15,633,663.77
  4. Step 4: Simplify right side
    28,686,685.79x = 618,881,577,100,586.75
  5. Step 5: Solve for x
    x = 618,881,577,100,586.75/28,686,685.79
  6. Step 6: Final answer
    x = 21,573,826.33

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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.