Finding the Fourth Proportional to 71,272,356.96, 98,355,915.68 and 38,677,308.96
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Solution
The fourth proportional to 71,272,356.96, 98,355,915.68 and 38,677,308.96 is: 53,374,720.59
Step by Step Solution
- Step 1: Write the proportion equation
71,272,356.96 : 98,355,915.68 = 38,677,308.96 : x - Step 2: Convert to fraction form
71,272,356.96/98,355,915.68 = 38,677,308.96/x - Step 3: Cross multiply
71,272,356.96x = 98,355,915.68 × 38,677,308.96 - Step 4: Simplify right side
71,272,356.96x = 3,804,142,138,799,069 - Step 5: Solve for x
x = 3,804,142,138,799,069/71,272,356.96 - Step 6: Final answer
x = 53,374,720.59
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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.