Finding the Fourth Proportional to 157,206,859.94, 216,946,356.06 and 91,166,569.04
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Solution
The fourth proportional to 157,206,859.94, 216,946,356.06 and 91,166,569.04 is: 125,810,381.02
Step by Step Solution
- Step 1: Write the proportion equation
157,206,859.94 : 216,946,356.06 = 91,166,569.04 : x - Step 2: Convert to fraction form
157,206,859.94/216,946,356.06 = 91,166,569.04/x - Step 3: Cross multiply
157,206,859.94x = 216,946,356.06 × 91,166,569.04 - Step 4: Simplify right side
157,206,859.94x = 19,778,254,947,720,416 - Step 5: Solve for x
x = 19,778,254,947,720,416/157,206,859.94 - Step 6: Final answer
x = 125,810,381.02
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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.