Finding the Fourth Proportional to 71,271,925.50, 98,355,257.99 and 38,676,877.50
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Solution
The fourth proportional to 71,271,925.50, 98,355,257.99 and 38,676,877.50 is: 53,374,091.38
Step by Step Solution
- Step 1: Write the proportion equation
71,271,925.50 : 98,355,257.99 = 38,676,877.50 : x - Step 2: Convert to fraction form
71,271,925.50/98,355,257.99 = 38,676,877.50/x - Step 3: Cross multiply
71,271,925.50x = 98,355,257.99 × 38,676,877.50 - Step 4: Simplify right side
71,271,925.50x = 3,804,074,264,760,126 - Step 5: Solve for x
x = 3,804,074,264,760,126/71,271,925.50 - Step 6: Final answer
x = 53,374,091.38
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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.