Home / 20,876,880.70-31,305,075.81-8,578,616.10

Finding the Fourth Proportional to 20,876,880.70, 31,305,075.81 and 8,578,616.10

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Solution

The fourth proportional to 20,876,880.70, 31,305,075.81 and 8,578,616.10 is: 12,863,714.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,876,880.70 : 31,305,075.81 = 8,578,616.10 : x
  2. Step 2: Convert to fraction form
    20,876,880.70/31,305,075.81 = 8,578,616.10/x
  3. Step 3: Cross multiply
    20,876,880.70x = 31,305,075.81 × 8,578,616.10
  4. Step 4: Simplify right side
    20,876,880.70x = 268,554,227,355,386.53
  5. Step 5: Solve for x
    x = 268,554,227,355,386.53/20,876,880.70
  6. Step 6: Final answer
    x = 12,863,714.23

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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.