Finding the Fourth Proportional to 2,021,285,266.90, 3,031,927,900.35 and 489,475,474.90
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Solution
The fourth proportional to 2,021,285,266.90, 3,031,927,900.35 and 489,475,474.90 is: 734,213,212.35
Step by Step Solution
- Step 1: Write the proportion equation
2,021,285,266.90 : 3,031,927,900.35 = 489,475,474.90 : x - Step 2: Convert to fraction form
2,021,285,266.90/3,031,927,900.35 = 489,475,474.90/x - Step 3: Cross multiply
2,021,285,266.90x = 3,031,927,900.35 × 489,475,474.90 - Step 4: Simplify right side
2,021,285,266.90x = 1,484,054,348,886,375,936 - Step 5: Solve for x
x = 1,484,054,348,886,375,936/2,021,285,266.90 - Step 6: Final answer
x = 734,213,212.35
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1.5x scale
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.