Home / 207,630,472.40-311,445,708.60-100,135,048.40

Finding the Fourth Proportional to 207,630,472.40, 311,445,708.60 and 100,135,048.40

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Solution

The fourth proportional to 207,630,472.40, 311,445,708.60 and 100,135,048.40 is: 150,202,572.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,630,472.40 : 311,445,708.60 = 100,135,048.40 : x
  2. Step 2: Convert to fraction form
    207,630,472.40/311,445,708.60 = 100,135,048.40/x
  3. Step 3: Cross multiply
    207,630,472.40x = 311,445,708.60 × 100,135,048.40
  4. Step 4: Simplify right side
    207,630,472.40x = 31,186,631,104,633,300
  5. Step 5: Solve for x
    x = 31,186,631,104,633,300/207,630,472.40
  6. Step 6: Final answer
    x = 150,202,572.60

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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.