Finding the Fourth Proportional to 2,590,866,442.76, 3,886,299,516.54 and 725,788,271.96
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Solution
The fourth proportional to 2,590,866,442.76, 3,886,299,516.54 and 725,788,271.96 is: 1,088,682,366.59
Step by Step Solution
- Step 1: Write the proportion equation
2,590,866,442.76 : 3,886,299,516.54 = 725,788,271.96 : x - Step 2: Convert to fraction form
2,590,866,442.76/3,886,299,516.54 = 725,788,271.96/x - Step 3: Cross multiply
2,590,866,442.76x = 3,886,299,516.54 × 725,788,271.96 - Step 4: Simplify right side
2,590,866,442.76x = 2,820,630,610,428,550,144 - Step 5: Solve for x
x = 2,820,630,610,428,550,144/2,590,866,442.76 - Step 6: Final answer
x = 1,088,682,366.59
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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.