Home / 15,314,666.62-21,133,968.81-8,345,405.65

Finding the Fourth Proportional to 15,314,666.62, 21,133,968.81 and 8,345,405.65

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Solution

The fourth proportional to 15,314,666.62, 21,133,968.81 and 8,345,405.65 is: 11,516,512.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,314,666.62 : 21,133,968.81 = 8,345,405.65 : x
  2. Step 2: Convert to fraction form
    15,314,666.62/21,133,968.81 = 8,345,405.65/x
  3. Step 3: Cross multiply
    15,314,666.62x = 21,133,968.81 × 8,345,405.65
  4. Step 4: Simplify right side
    15,314,666.62x = 176,371,542,713,897.78
  5. Step 5: Solve for x
    x = 176,371,542,713,897.78/15,314,666.62
  6. Step 6: Final answer
    x = 11,516,512.05

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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.