Home / 12,950,295.30-17,870,938.61-7,148,952.18

Finding the Fourth Proportional to 12,950,295.30, 17,870,938.61 and 7,148,952.18

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Solution

The fourth proportional to 12,950,295.30, 17,870,938.61 and 7,148,952.18 is: 9,865,295.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,950,295.30 : 17,870,938.61 = 7,148,952.18 : x
  2. Step 2: Convert to fraction form
    12,950,295.30/17,870,938.61 = 7,148,952.18/x
  3. Step 3: Cross multiply
    12,950,295.30x = 17,870,938.61 × 7,148,952.18
  4. Step 4: Simplify right side
    12,950,295.30x = 127,758,485,498,860.91
  5. Step 5: Solve for x
    x = 127,758,485,498,860.91/12,950,295.30
  6. Step 6: Final answer
    x = 9,865,295.16

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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.