Home / 14,258,963.82-19,678,426.98-7,980,120.37

Finding the Fourth Proportional to 14,258,963.82, 19,678,426.98 and 7,980,120.37

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Solution

The fourth proportional to 14,258,963.82, 19,678,426.98 and 7,980,120.37 is: 11,013,157.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,258,963.82 : 19,678,426.98 = 7,980,120.37 : x
  2. Step 2: Convert to fraction form
    14,258,963.82/19,678,426.98 = 7,980,120.37/x
  3. Step 3: Cross multiply
    14,258,963.82x = 19,678,426.98 × 7,980,120.37
  4. Step 4: Simplify right side
    14,258,963.82x = 157,036,215,987,328.16
  5. Step 5: Solve for x
    x = 157,036,215,987,328.16/14,258,963.82
  6. Step 6: Final answer
    x = 11,013,157.61

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1.5x scale

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.