Home / 2,187,099.81-3,018,056.04-1,207,047.60

Finding the Fourth Proportional to 2,187,099.81, 3,018,056.04 and 1,207,047.60

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Solution

The fourth proportional to 2,187,099.81, 3,018,056.04 and 1,207,047.60 is: 1,665,647.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,099.81 : 3,018,056.04 = 1,207,047.60 : x
  2. Step 2: Convert to fraction form
    2,187,099.81/3,018,056.04 = 1,207,047.60/x
  3. Step 3: Cross multiply
    2,187,099.81x = 3,018,056.04 × 1,207,047.60
  4. Step 4: Simplify right side
    2,187,099.81x = 3,642,937,299,747.50
  5. Step 5: Solve for x
    x = 3,642,937,299,747.50/2,187,099.81
  6. Step 6: Final answer
    x = 1,665,647.49

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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.