Home / 15,678,680.24-21,637,186.08-8,709,886.94

Finding the Fourth Proportional to 15,678,680.24, 21,637,186.08 and 8,709,886.94

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Solution

The fourth proportional to 15,678,680.24, 21,637,186.08 and 8,709,886.94 is: 12,019,981.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,678,680.24 : 21,637,186.08 = 8,709,886.94 : x
  2. Step 2: Convert to fraction form
    15,678,680.24/21,637,186.08 = 8,709,886.94/x
  3. Step 3: Cross multiply
    15,678,680.24x = 21,637,186.08 × 8,709,886.94
  4. Step 4: Simplify right side
    15,678,680.24x = 188,457,444,456,541.78
  5. Step 5: Solve for x
    x = 188,457,444,456,541.78/15,678,680.24
  6. Step 6: Final answer
    x = 12,019,981.37

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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.