Home / 5,072,100.72-6,999,678.36-2,780,260.80

Finding the Fourth Proportional to 5,072,100.72, 6,999,678.36 and 2,780,260.80

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Solution

The fourth proportional to 5,072,100.72, 6,999,678.36 and 2,780,260.80 is: 3,836,858.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,072,100.72 : 6,999,678.36 = 2,780,260.80 : x
  2. Step 2: Convert to fraction form
    5,072,100.72/6,999,678.36 = 2,780,260.80/x
  3. Step 3: Cross multiply
    5,072,100.72x = 6,999,678.36 × 2,780,260.80
  4. Step 4: Simplify right side
    5,072,100.72x = 19,460,931,356,916.29
  5. Step 5: Solve for x
    x = 19,460,931,356,916.29/5,072,100.72
  6. Step 6: Final answer
    x = 3,836,858.22

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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.