Home / 13,569,309.12-18,724,855.68-7,457,742.72

Finding the Fourth Proportional to 13,569,309.12, 18,724,855.68 and 7,457,742.72

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Solution

The fourth proportional to 13,569,309.12, 18,724,855.68 and 7,457,742.72 is: 10,291,250.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,569,309.12 : 18,724,855.68 = 7,457,742.72 : x
  2. Step 2: Convert to fraction form
    13,569,309.12/18,724,855.68 = 7,457,742.72/x
  3. Step 3: Cross multiply
    13,569,309.12x = 18,724,855.68 × 7,457,742.72
  4. Step 4: Simplify right side
    13,569,309.12x = 139,645,156,130,570.64
  5. Step 5: Solve for x
    x = 139,645,156,130,570.64/13,569,309.12
  6. Step 6: Final answer
    x = 10,291,250.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.