Finding the Fourth Proportional to 319,152,317.08, 478,728,606.84 and 76,815,221.08
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Solution
The fourth proportional to 319,152,317.08, 478,728,606.84 and 76,815,221.08 is: 115,222,863.20
Step by Step Solution
- Step 1: Write the proportion equation
319,152,317.08 : 478,728,606.84 = 76,815,221.08 : x - Step 2: Convert to fraction form
319,152,317.08/478,728,606.84 = 76,815,221.08/x - Step 3: Cross multiply
319,152,317.08x = 478,728,606.84 × 76,815,221.08 - Step 4: Simplify right side
319,152,317.08x = 36,773,643,771,735,000 - Step 5: Solve for x
x = 36,773,643,771,735,000/319,152,317.08 - Step 6: Final answer
x = 115,222,863.20
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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.