Home / 18,837,369.36-28,206,722.16-12,340,004.40

Finding the Fourth Proportional to 18,837,369.36, 28,206,722.16 and 12,340,004.40

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Solution

The fourth proportional to 18,837,369.36, 28,206,722.16 and 12,340,004.40 is: 18,477,690.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,837,369.36 : 28,206,722.16 = 12,340,004.40 : x
  2. Step 2: Convert to fraction form
    18,837,369.36/28,206,722.16 = 12,340,004.40/x
  3. Step 3: Cross multiply
    18,837,369.36x = 28,206,722.16 × 12,340,004.40
  4. Step 4: Simplify right side
    18,837,369.36x = 348,071,075,563,977.50
  5. Step 5: Solve for x
    x = 348,071,075,563,977.50/18,837,369.36
  6. Step 6: Final answer
    x = 18,477,690.22

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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.