Home / 12,423,878.99-18,611,574.52-9,678,571.97

Finding the Fourth Proportional to 12,423,878.99, 18,611,574.52 and 9,678,571.97

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Solution

The fourth proportional to 12,423,878.99, 18,611,574.52 and 9,678,571.97 is: 14,498,971.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,423,878.99 : 18,611,574.52 = 9,678,571.97 : x
  2. Step 2: Convert to fraction form
    12,423,878.99/18,611,574.52 = 9,678,571.97/x
  3. Step 3: Cross multiply
    12,423,878.99x = 18,611,574.52 × 9,678,571.97
  4. Step 4: Simplify right side
    12,423,878.99x = 180,133,463,525,465.34
  5. Step 5: Solve for x
    x = 180,133,463,525,465.34/12,423,878.99
  6. Step 6: Final answer
    x = 14,498,971.19

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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.