Finding the Fourth Proportional to 1,252,615,262.16, 1,728,609,006.96 and 695,750,124.72
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Solution
The fourth proportional to 1,252,615,262.16, 1,728,609,006.96 and 695,750,124.72 is: 960,135,141.66
Step by Step Solution
- Step 1: Write the proportion equation
1,252,615,262.16 : 1,728,609,006.96 = 695,750,124.72 : x - Step 2: Convert to fraction form
1,252,615,262.16/1,728,609,006.96 = 695,750,124.72/x - Step 3: Cross multiply
1,252,615,262.16x = 1,728,609,006.96 × 695,750,124.72 - Step 4: Simplify right side
1,252,615,262.16x = 1,202,679,932,184,535,552 - Step 5: Solve for x
x = 1,202,679,932,184,535,552/1,252,615,262.16 - Step 6: Final answer
x = 960,135,141.66
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.