Finding the Fourth Proportional to 1,259,722,468.80, 1,889,583,703.20 and 569,652,235.20
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Solution
The fourth proportional to 1,259,722,468.80, 1,889,583,703.20 and 569,652,235.20 is: 854,478,352.80
Step by Step Solution
- Step 1: Write the proportion equation
1,259,722,468.80 : 1,889,583,703.20 = 569,652,235.20 : x - Step 2: Convert to fraction form
1,259,722,468.80/1,889,583,703.20 = 569,652,235.20/x - Step 3: Cross multiply
1,259,722,468.80x = 1,889,583,703.20 × 569,652,235.20 - Step 4: Simplify right side
1,259,722,468.80x = 1,076,405,580,125,373,568 - Step 5: Solve for x
x = 1,076,405,580,125,373,568/1,259,722,468.80 - Step 6: Final answer
x = 854,478,352.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.