Home / 28,684,457.40-39,583,399.43-15,631,438.11

Finding the Fourth Proportional to 28,684,457.40, 39,583,399.43 and 15,631,438.11

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Solution

The fourth proportional to 28,684,457.40, 39,583,399.43 and 15,631,438.11 is: 21,570,756.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,684,457.40 : 39,583,399.43 = 15,631,438.11 : x
  2. Step 2: Convert to fraction form
    28,684,457.40/39,583,399.43 = 15,631,438.11/x
  3. Step 3: Cross multiply
    28,684,457.40x = 39,583,399.43 × 15,631,438.11
  4. Step 4: Simplify right side
    28,684,457.40x = 618,745,458,295,297
  5. Step 5: Solve for x
    x = 618,745,458,295,297/28,684,457.40
  6. Step 6: Final answer
    x = 21,570,756.93

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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.