Home / 13,305,520.72-19,960,742.81-4,209,908.01

Finding the Fourth Proportional to 13,305,520.72, 19,960,742.81 and 4,209,908.01

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Solution

The fourth proportional to 13,305,520.72, 19,960,742.81 and 4,209,908.01 is: 6,315,640.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,305,520.72 : 19,960,742.81 = 4,209,908.01 : x
  2. Step 2: Convert to fraction form
    13,305,520.72/19,960,742.81 = 4,209,908.01/x
  3. Step 3: Cross multiply
    13,305,520.72x = 19,960,742.81 × 4,209,908.01
  4. Step 4: Simplify right side
    13,305,520.72x = 84,032,891,041,368.89
  5. Step 5: Solve for x
    x = 84,032,891,041,368.89/13,305,520.72
  6. Step 6: Final answer
    x = 6,315,640.91

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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.