Finding the Fourth Proportional to 318,513,694,975.08, 439,653,648,531.36 and 253,527,328,112.40
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Solution
The fourth proportional to 318,513,694,975.08, 439,653,648,531.36 and 253,527,328,112.40 is: 349,951,090,221.55
Step by Step Solution
- Step 1: Write the proportion equation
318,513,694,975.08 : 439,653,648,531.36 = 253,527,328,112.40 : x - Step 2: Convert to fraction form
318,513,694,975.08/439,653,648,531.36 = 253,527,328,112.40/x - Step 3: Cross multiply
318,513,694,975.08x = 439,653,648,531.36 × 253,527,328,112.40 - Step 4: Simplify right side
318,513,694,975.08x = 111,464,214,807,023,892,561,920 - Step 5: Solve for x
x = 111,464,214,807,023,892,561,920/318,513,694,975.08 - Step 6: Final answer
x = 349,951,090,221.55
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1.5x scale
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.