Home / 199,290,401.70-298,935,602.55-140,619,315.30

Finding the Fourth Proportional to 199,290,401.70, 298,935,602.55 and 140,619,315.30

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Solution

The fourth proportional to 199,290,401.70, 298,935,602.55 and 140,619,315.30 is: 210,928,972.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,290,401.70 : 298,935,602.55 = 140,619,315.30 : x
  2. Step 2: Convert to fraction form
    199,290,401.70/298,935,602.55 = 140,619,315.30/x
  3. Step 3: Cross multiply
    199,290,401.70x = 298,935,602.55 × 140,619,315.30
  4. Step 4: Simplify right side
    199,290,401.70x = 42,036,119,749,373,936
  5. Step 5: Solve for x
    x = 42,036,119,749,373,936/199,290,401.70
  6. Step 6: Final answer
    x = 210,928,972.95

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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.