Home / 15,433,880.96-21,280,136.09-13,336,977.17

Finding the Fourth Proportional to 15,433,880.96, 21,280,136.09 and 13,336,977.17

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Solution

The fourth proportional to 15,433,880.96, 21,280,136.09 and 13,336,977.17 is: 18,388,938.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,433,880.96 : 21,280,136.09 = 13,336,977.17 : x
  2. Step 2: Convert to fraction form
    15,433,880.96/21,280,136.09 = 13,336,977.17/x
  3. Step 3: Cross multiply
    15,433,880.96x = 21,280,136.09 × 13,336,977.17
  4. Step 4: Simplify right side
    15,433,880.96x = 283,812,689,033,737.50
  5. Step 5: Solve for x
    x = 283,812,689,033,737.50/15,433,880.96
  6. Step 6: Final answer
    x = 18,388,938.59

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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.