Home / 210,135,243.30-314,777,712.15-145,512,017.70

Finding the Fourth Proportional to 210,135,243.30, 314,777,712.15 and 145,512,017.70

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Solution

The fourth proportional to 210,135,243.30, 314,777,712.15 and 145,512,017.70 is: 217,973,621.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,135,243.30 : 314,777,712.15 = 145,512,017.70 : x
  2. Step 2: Convert to fraction form
    210,135,243.30/314,777,712.15 = 145,512,017.70/x
  3. Step 3: Cross multiply
    210,135,243.30x = 314,777,712.15 × 145,512,017.70
  4. Step 4: Simplify right side
    210,135,243.30x = 45,803,940,021,936,296
  5. Step 5: Solve for x
    x = 45,803,940,021,936,296/210,135,243.30
  6. Step 6: Final answer
    x = 217,973,621.67

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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.