Finding the Fourth Proportional to 135,217,234.89, 186,604,008.12 and 76,478,750.63
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Solution
The fourth proportional to 135,217,234.89, 186,604,008.12 and 76,478,750.63 is: 105,543,064.94
Step by Step Solution
- Step 1: Write the proportion equation
135,217,234.89 : 186,604,008.12 = 76,478,750.63 : x - Step 2: Convert to fraction form
135,217,234.89/186,604,008.12 = 76,478,750.63/x - Step 3: Cross multiply
135,217,234.89x = 186,604,008.12 × 76,478,750.63 - Step 4: Simplify right side
135,217,234.89x = 14,271,241,402,634,956 - Step 5: Solve for x
x = 14,271,241,402,634,956/135,217,234.89 - Step 6: Final answer
x = 105,543,064.94
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.