Home / 12,963,899.72-17,890,542.34-7,163,055.16

Finding the Fourth Proportional to 12,963,899.72, 17,890,542.34 and 7,163,055.16

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Solution

The fourth proportional to 12,963,899.72, 17,890,542.34 and 7,163,055.16 is: 9,885,215.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,963,899.72 : 17,890,542.34 = 7,163,055.16 : x
  2. Step 2: Convert to fraction form
    12,963,899.72/17,890,542.34 = 7,163,055.16/x
  3. Step 3: Cross multiply
    12,963,899.72x = 17,890,542.34 × 7,163,055.16
  4. Step 4: Simplify right side
    12,963,899.72x = 128,150,941,623,735.47
  5. Step 5: Solve for x
    x = 128,150,941,623,735.47/12,963,899.72
  6. Step 6: Final answer
    x = 9,885,215.44

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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.