Home / 630,017,999.70-945,026,999.55-412,339,766.10

Finding the Fourth Proportional to 630,017,999.70, 945,026,999.55 and 412,339,766.10

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Solution

The fourth proportional to 630,017,999.70, 945,026,999.55 and 412,339,766.10 is: 618,509,649.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,017,999.70 : 945,026,999.55 = 412,339,766.10 : x
  2. Step 2: Convert to fraction form
    630,017,999.70/945,026,999.55 = 412,339,766.10/x
  3. Step 3: Cross multiply
    630,017,999.70x = 945,026,999.55 × 412,339,766.10
  4. Step 4: Simplify right side
    630,017,999.70x = 389,672,211,952,631,808
  5. Step 5: Solve for x
    x = 389,672,211,952,631,808/630,017,999.70
  6. Step 6: Final answer
    x = 618,509,649.15

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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.