Finding the Fourth Proportional to 1,259,722,542.30, 1,889,583,813.45 and 569,652,308.70
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Solution
The fourth proportional to 1,259,722,542.30, 1,889,583,813.45 and 569,652,308.70 is: 854,478,463.05
Step by Step Solution
- Step 1: Write the proportion equation
1,259,722,542.30 : 1,889,583,813.45 = 569,652,308.70 : x - Step 2: Convert to fraction form
1,259,722,542.30/1,889,583,813.45 = 569,652,308.70/x - Step 3: Cross multiply
1,259,722,542.30x = 1,889,583,813.45 × 569,652,308.70 - Step 4: Simplify right side
1,259,722,542.30x = 1,076,405,781,813,942,784 - Step 5: Solve for x
x = 1,076,405,781,813,942,784/1,259,722,542.30 - Step 6: Final answer
x = 854,478,463.05
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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.