Home / 628,311,036.80-942,466,555.20-197,489,532.80

Finding the Fourth Proportional to 628,311,036.80, 942,466,555.20 and 197,489,532.80

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Solution

The fourth proportional to 628,311,036.80, 942,466,555.20 and 197,489,532.80 is: 296,234,299.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,311,036.80 : 942,466,555.20 = 197,489,532.80 : x
  2. Step 2: Convert to fraction form
    628,311,036.80/942,466,555.20 = 197,489,532.80/x
  3. Step 3: Cross multiply
    628,311,036.80x = 942,466,555.20 × 197,489,532.80
  4. Step 4: Simplify right side
    628,311,036.80x = 186,127,279,666,073,440
  5. Step 5: Solve for x
    x = 186,127,279,666,073,440/628,311,036.80
  6. Step 6: Final answer
    x = 296,234,299.20

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Double scale
Find fourth proportional to 628,311,037.80, 942,466,556.70 and 197,489,533.80
Similar ratio
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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.