Home / 12,950,185-17,870,786.96-7,148,842.20

Finding the Fourth Proportional to 12,950,185, 17,870,786.96 and 7,148,842.20

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Solution

The fourth proportional to 12,950,185, 17,870,786.96 and 7,148,842.20 is: 9,865,143.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,950,185 : 17,870,786.96 = 7,148,842.20 : x
  2. Step 2: Convert to fraction form
    12,950,185/17,870,786.96 = 7,148,842.20/x
  3. Step 3: Cross multiply
    12,950,185x = 17,870,786.96 × 7,148,842.20
  4. Step 4: Simplify right side
    12,950,185x = 127,755,435,966,857.72
  5. Step 5: Solve for x
    x = 127,755,435,966,857.72/12,950,185
  6. Step 6: Final answer
    x = 9,865,143.70

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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.