Home / 21,054,401.10-31,581,601.65-18,583,200.45

Finding the Fourth Proportional to 21,054,401.10, 31,581,601.65 and 18,583,200.45

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Solution

The fourth proportional to 21,054,401.10, 31,581,601.65 and 18,583,200.45 is: 27,874,800.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,054,401.10 : 31,581,601.65 = 18,583,200.45 : x
  2. Step 2: Convert to fraction form
    21,054,401.10/31,581,601.65 = 18,583,200.45/x
  3. Step 3: Cross multiply
    21,054,401.10x = 31,581,601.65 × 18,583,200.45
  4. Step 4: Simplify right side
    21,054,401.10x = 586,887,233,994,000.75
  5. Step 5: Solve for x
    x = 586,887,233,994,000.75/21,054,401.10
  6. Step 6: Final answer
    x = 27,874,800.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.