Home / 2,187,125.70-3,280,688.55-1,513,019.40

Finding the Fourth Proportional to 2,187,125.70, 3,280,688.55 and 1,513,019.40

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Solution

The fourth proportional to 2,187,125.70, 3,280,688.55 and 1,513,019.40 is: 2,269,529.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,125.70 : 3,280,688.55 = 1,513,019.40 : x
  2. Step 2: Convert to fraction form
    2,187,125.70/3,280,688.55 = 1,513,019.40/x
  3. Step 3: Cross multiply
    2,187,125.70x = 3,280,688.55 × 1,513,019.40
  4. Step 4: Simplify right side
    2,187,125.70x = 4,963,745,421,507.87
  5. Step 5: Solve for x
    x = 4,963,745,421,507.87/2,187,125.70
  6. Step 6: Final answer
    x = 2,269,529.10

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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.