Finding the Fourth Proportional to 631,230,711.18, 871,125,283.72 and 352,772,226.52
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Solution
The fourth proportional to 631,230,711.18, 871,125,283.72 and 352,772,226.52 is: 486,840,707.32
Step by Step Solution
- Step 1: Write the proportion equation
631,230,711.18 : 871,125,283.72 = 352,772,226.52 : x - Step 2: Convert to fraction form
631,230,711.18/871,125,283.72 = 352,772,226.52/x - Step 3: Cross multiply
631,230,711.18x = 871,125,283.72 × 352,772,226.52 - Step 4: Simplify right side
631,230,711.18x = 307,308,805,915,771,072 - Step 5: Solve for x
x = 307,308,805,915,771,072/631,230,711.18 - Step 6: Final answer
x = 486,840,707.32
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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.