Home / 311,890,749.56-430,392,182.76-170,734,663.22

Finding the Fourth Proportional to 311,890,749.56, 430,392,182.76 and 170,734,663.22

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Solution

The fourth proportional to 311,890,749.56, 430,392,182.76 and 170,734,663.22 is: 235,604,500.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,890,749.56 : 430,392,182.76 = 170,734,663.22 : x
  2. Step 2: Convert to fraction form
    311,890,749.56/430,392,182.76 = 170,734,663.22/x
  3. Step 3: Cross multiply
    311,890,749.56x = 430,392,182.76 × 170,734,663.22
  4. Step 4: Simplify right side
    311,890,749.56x = 73,482,864,376,049,280
  5. Step 5: Solve for x
    x = 73,482,864,376,049,280/311,890,749.56
  6. Step 6: Final answer
    x = 235,604,500.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.