Finding the Fourth Proportional to 70,971,293.76, 97,940,316.96 and 38,376,168
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Solution
The fourth proportional to 70,971,293.76, 97,940,316.96 and 38,376,168 is: 52,959,074.84
Step by Step Solution
- Step 1: Write the proportion equation
70,971,293.76 : 97,940,316.96 = 38,376,168 : x - Step 2: Convert to fraction form
70,971,293.76/97,940,316.96 = 38,376,168/x - Step 3: Cross multiply
70,971,293.76x = 97,940,316.96 × 38,376,168 - Step 4: Simplify right side
70,971,293.76x = 3,758,574,057,630,209 - Step 5: Solve for x
x = 3,758,574,057,630,209/70,971,293.76 - Step 6: Final answer
x = 52,959,074.84
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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.