Home / 5,381,938.90-8,072,908.53-2,187,314.41

Finding the Fourth Proportional to 5,381,938.90, 8,072,908.53 and 2,187,314.41

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Solution

The fourth proportional to 5,381,938.90, 8,072,908.53 and 2,187,314.41 is: 3,280,971.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,381,938.90 : 8,072,908.53 = 2,187,314.41 : x
  2. Step 2: Convert to fraction form
    5,381,938.90/8,072,908.53 = 2,187,314.41/x
  3. Step 3: Cross multiply
    5,381,938.90x = 8,072,908.53 × 2,187,314.41
  4. Step 4: Simplify right side
    5,381,938.90x = 17,657,989,158,280.92
  5. Step 5: Solve for x
    x = 17,657,989,158,280.92/5,381,938.90
  6. Step 6: Final answer
    x = 3,280,971.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.