Home / 70,306,401.36-105,474,660.48-21,783,180.72

Finding the Fourth Proportional to 70,306,401.36, 105,474,660.48 and 21,783,180.72

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Solution

The fourth proportional to 70,306,401.36, 105,474,660.48 and 21,783,180.72 is: 32,679,436.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,306,401.36 : 105,474,660.48 = 21,783,180.72 : x
  2. Step 2: Convert to fraction form
    70,306,401.36/105,474,660.48 = 21,783,180.72/x
  3. Step 3: Cross multiply
    70,306,401.36x = 105,474,660.48 × 21,783,180.72
  4. Step 4: Simplify right side
    70,306,401.36x = 2,297,573,590,616,482
  5. Step 5: Solve for x
    x = 2,297,573,590,616,482/70,306,401.36
  6. Step 6: Final answer
    x = 32,679,436.67

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1.5x scale

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.