Finding the Fourth Proportional to 1,737,921,769.20, 2,609,905,962.60 and 921,628,393.20
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Solution
The fourth proportional to 1,737,921,769.20, 2,609,905,962.60 and 921,628,393.20 is: 1,384,045,865.21
Step by Step Solution
- Step 1: Write the proportion equation
1,737,921,769.20 : 2,609,905,962.60 = 921,628,393.20 : x - Step 2: Convert to fraction form
1,737,921,769.20/2,609,905,962.60 = 921,628,393.20/x - Step 3: Cross multiply
1,737,921,769.20x = 2,609,905,962.60 × 921,628,393.20 - Step 4: Simplify right side
1,737,921,769.20x = 2,405,363,438,714,137,088 - Step 5: Solve for x
x = 2,405,363,438,714,137,088/1,737,921,769.20 - Step 6: Final answer
x = 1,384,045,865.21
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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.