Home / 20,201,279.90-30,315,177.93-7,421,890.46

Finding the Fourth Proportional to 20,201,279.90, 30,315,177.93 and 7,421,890.46

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Solution

The fourth proportional to 20,201,279.90, 30,315,177.93 and 7,421,890.46 is: 11,137,706.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,201,279.90 : 30,315,177.93 = 7,421,890.46 : x
  2. Step 2: Convert to fraction form
    20,201,279.90/30,315,177.93 = 7,421,890.46/x
  3. Step 3: Cross multiply
    20,201,279.90x = 30,315,177.93 × 7,421,890.46
  4. Step 4: Simplify right side
    20,201,279.90x = 224,995,929,871,869.53
  5. Step 5: Solve for x
    x = 224,995,929,871,869.53/20,201,279.90
  6. Step 6: Final answer
    x = 11,137,706.67

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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.