Home / 20,211,075.72-30,316,744.80-8,081,558.19

Finding the Fourth Proportional to 20,211,075.72, 30,316,744.80 and 8,081,558.19

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Solution

The fourth proportional to 20,211,075.72, 30,316,744.80 and 8,081,558.19 is: 12,122,389.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,211,075.72 : 30,316,744.80 = 8,081,558.19 : x
  2. Step 2: Convert to fraction form
    20,211,075.72/30,316,744.80 = 8,081,558.19/x
  3. Step 3: Cross multiply
    20,211,075.72x = 30,316,744.80 × 8,081,558.19
  4. Step 4: Simplify right side
    20,211,075.72x = 245,006,537,232,579.94
  5. Step 5: Solve for x
    x = 245,006,537,232,579.94/20,211,075.72
  6. Step 6: Final answer
    x = 12,122,389.75

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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.