Home / 12,950,165.61-17,870,760.20-7,148,822.79

Finding the Fourth Proportional to 12,950,165.61, 17,870,760.20 and 7,148,822.79

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Solution

The fourth proportional to 12,950,165.61, 17,870,760.20 and 7,148,822.79 is: 9,865,116.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,950,165.61 : 17,870,760.20 = 7,148,822.79 : x
  2. Step 2: Convert to fraction form
    12,950,165.61/17,870,760.20 = 7,148,822.79/x
  3. Step 3: Cross multiply
    12,950,165.61x = 17,870,760.20 × 7,148,822.79
  4. Step 4: Simplify right side
    12,950,165.61x = 127,754,897,792,384.95
  5. Step 5: Solve for x
    x = 127,754,897,792,384.95/12,950,165.61
  6. Step 6: Final answer
    x = 9,865,116.91

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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.