Home / 28,684,431.36-39,583,509.84-15,631,423.92

Finding the Fourth Proportional to 28,684,431.36, 39,583,509.84 and 15,631,423.92

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Solution

The fourth proportional to 28,684,431.36, 39,583,509.84 and 15,631,423.92 is: 21,570,817.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,684,431.36 : 39,583,509.84 = 15,631,423.92 : x
  2. Step 2: Convert to fraction form
    28,684,431.36/39,583,509.84 = 15,631,423.92/x
  3. Step 3: Cross multiply
    28,684,431.36x = 39,583,509.84 × 15,631,423.92
  4. Step 4: Simplify right side
    28,684,431.36x = 618,746,622,550,531.38
  5. Step 5: Solve for x
    x = 618,746,622,550,531.38/28,684,431.36
  6. Step 6: Final answer
    x = 21,570,817.10

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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.