Home / 612,178,331.20-919,224,090.60-353,898,005.20

Finding the Fourth Proportional to 612,178,331.20, 919,224,090.60 and 353,898,005.20

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Solution

The fourth proportional to 612,178,331.20, 919,224,090.60 and 353,898,005.20 is: 531,400,011.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,178,331.20 : 919,224,090.60 = 353,898,005.20 : x
  2. Step 2: Convert to fraction form
    612,178,331.20/919,224,090.60 = 353,898,005.20/x
  3. Step 3: Cross multiply
    612,178,331.20x = 919,224,090.60 × 353,898,005.20
  4. Step 4: Simplify right side
    612,178,331.20x = 325,311,571,995,124,096
  5. Step 5: Solve for x
    x = 325,311,571,995,124,096/612,178,331.20
  6. Step 6: Final answer
    x = 531,400,011.10

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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.