Home / 412,947,496.80-619,421,245.20-238,369,128.30

Finding the Fourth Proportional to 412,947,496.80, 619,421,245.20 and 238,369,128.30

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Solution

The fourth proportional to 412,947,496.80, 619,421,245.20 and 238,369,128.30 is: 357,553,692.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,947,496.80 : 619,421,245.20 = 238,369,128.30 : x
  2. Step 2: Convert to fraction form
    412,947,496.80/619,421,245.20 = 238,369,128.30/x
  3. Step 3: Cross multiply
    412,947,496.80x = 619,421,245.20 × 238,369,128.30
  4. Step 4: Simplify right side
    412,947,496.80x = 147,650,902,268,824,576
  5. Step 5: Solve for x
    x = 147,650,902,268,824,576/412,947,496.80
  6. Step 6: Final answer
    x = 357,553,692.45

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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.