Finding the Fourth Proportional to 157,374,594.15, 217,177,149.14 and 86,808,612.57
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Solution
The fourth proportional to 157,374,594.15, 217,177,149.14 and 86,808,612.57 is: 119,796,000.75
Step by Step Solution
- Step 1: Write the proportion equation
157,374,594.15 : 217,177,149.14 = 86,808,612.57 : x - Step 2: Convert to fraction form
157,374,594.15/217,177,149.14 = 86,808,612.57/x - Step 3: Cross multiply
157,374,594.15x = 217,177,149.14 × 86,808,612.57 - Step 4: Simplify right side
157,374,594.15x = 18,852,846,998,751,364 - Step 5: Solve for x
x = 18,852,846,998,751,364/157,374,594.15 - Step 6: Final answer
x = 119,796,000.75
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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.