Home / 12,128,411.70-18,192,617.55-9,976,075.65

Finding the Fourth Proportional to 12,128,411.70, 18,192,617.55 and 9,976,075.65

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Solution

The fourth proportional to 12,128,411.70, 18,192,617.55 and 9,976,075.65 is: 14,964,113.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,128,411.70 : 18,192,617.55 = 9,976,075.65 : x
  2. Step 2: Convert to fraction form
    12,128,411.70/18,192,617.55 = 9,976,075.65/x
  3. Step 3: Cross multiply
    12,128,411.70x = 18,192,617.55 × 9,976,075.65
  4. Step 4: Simplify right side
    12,128,411.70x = 181,490,928,950,317.66
  5. Step 5: Solve for x
    x = 181,490,928,950,317.66/12,128,411.70
  6. Step 6: Final answer
    x = 14,964,113.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.