Finding the Fourth Proportional to 315,578,466.40, 473,143,750.80 and 121,414,856.80
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Solution
The fourth proportional to 315,578,466.40, 473,143,750.80 and 121,414,856.80 is: 182,036,123.71
Step by Step Solution
- Step 1: Write the proportion equation
315,578,466.40 : 473,143,750.80 = 121,414,856.80 : x - Step 2: Convert to fraction form
315,578,466.40/473,143,750.80 = 121,414,856.80/x - Step 3: Cross multiply
315,578,466.40x = 473,143,750.80 × 121,414,856.80 - Step 4: Simplify right side
315,578,466.40x = 57,446,680,749,196,888 - Step 5: Solve for x
x = 57,446,680,749,196,888/315,578,466.40 - Step 6: Final answer
x = 182,036,123.71
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.