Finding the Fourth Proportional to 310,490,581.15, 428,478,334.09 and 169,364,877.02
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Solution
The fourth proportional to 310,490,581.15, 428,478,334.09 and 169,364,877.02 is: 233,724,256.92
Step by Step Solution
- Step 1: Write the proportion equation
310,490,581.15 : 428,478,334.09 = 169,364,877.02 : x - Step 2: Convert to fraction form
310,490,581.15/428,478,334.09 = 169,364,877.02/x - Step 3: Cross multiply
310,490,581.15x = 428,478,334.09 × 169,364,877.02 - Step 4: Simplify right side
310,490,581.15x = 72,569,180,358,887,328 - Step 5: Solve for x
x = 72,569,180,358,887,328/310,490,581.15 - Step 6: Final answer
x = 233,724,256.92
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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.