Home / 27,661,795.65-38,173,071.69-15,271,886.61

Finding the Fourth Proportional to 27,661,795.65, 38,173,071.69 and 15,271,886.61

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Solution

The fourth proportional to 27,661,795.65, 38,173,071.69 and 15,271,886.61 is: 21,075,089.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,661,795.65 : 38,173,071.69 = 15,271,886.61 : x
  2. Step 2: Convert to fraction form
    27,661,795.65/38,173,071.69 = 15,271,886.61/x
  3. Step 3: Cross multiply
    27,661,795.65x = 38,173,071.69 × 15,271,886.61
  4. Step 4: Simplify right side
    27,661,795.65x = 582,974,822,405,081
  5. Step 5: Solve for x
    x = 582,974,822,405,081/27,661,795.65
  6. Step 6: Final answer
    x = 21,075,089.62

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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.