Home / 15,287,401.17-21,095,981.07-8,318,107.40

Finding the Fourth Proportional to 15,287,401.17, 21,095,981.07 and 8,318,107.40

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Solution

The fourth proportional to 15,287,401.17, 21,095,981.07 and 8,318,107.40 is: 11,478,644.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,287,401.17 : 21,095,981.07 = 8,318,107.40 : x
  2. Step 2: Convert to fraction form
    15,287,401.17/21,095,981.07 = 8,318,107.40/x
  3. Step 3: Cross multiply
    15,287,401.17x = 21,095,981.07 × 8,318,107.40
  4. Step 4: Simplify right side
    15,287,401.17x = 175,478,636,143,147
  5. Step 5: Solve for x
    x = 175,478,636,143,147/15,287,401.17
  6. Step 6: Final answer
    x = 11,478,644.03

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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.