Finding the Fourth Proportional to 7,710,368.88, 11,564,057.86 and 2,918,431.92
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Solution
The fourth proportional to 7,710,368.88, 11,564,057.86 and 2,918,431.92 is: 4,377,081.84
Step by Step Solution
- Step 1: Write the proportion equation
7,710,368.88 : 11,564,057.86 = 2,918,431.92 : x - Step 2: Convert to fraction form
7,710,368.88/11,564,057.86 = 2,918,431.92/x - Step 3: Cross multiply
7,710,368.88x = 11,564,057.86 × 2,918,431.92 - Step 4: Simplify right side
7,710,368.88x = 33,748,915,583,350.89 - Step 5: Solve for x
x = 33,748,915,583,350.89/7,710,368.88 - Step 6: Final answer
x = 4,377,081.84
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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.