Home / 28,902,384.43-39,886,215.01-15,849,612.56

Finding the Fourth Proportional to 28,902,384.43, 39,886,215.01 and 15,849,612.56

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Solution

The fourth proportional to 28,902,384.43, 39,886,215.01 and 15,849,612.56 is: 21,872,972.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,902,384.43 : 39,886,215.01 = 15,849,612.56 : x
  2. Step 2: Convert to fraction form
    28,902,384.43/39,886,215.01 = 15,849,612.56/x
  3. Step 3: Cross multiply
    28,902,384.43x = 39,886,215.01 × 15,849,612.56
  4. Step 4: Simplify right side
    28,902,384.43x = 632,181,054,453,448
  5. Step 5: Solve for x
    x = 632,181,054,453,448/28,902,384.43
  6. Step 6: Final answer
    x = 21,872,972.32

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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.