Finding the Fourth Proportional to 86,312,931.17, 129,551,249.00 and 53,424,013.93
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Solution
The fourth proportional to 86,312,931.17, 129,551,249.00 and 53,424,013.93 is: 80,186,683.94
Step by Step Solution
- Step 1: Write the proportion equation
86,312,931.17 : 129,551,249.00 = 53,424,013.93 : x - Step 2: Convert to fraction form
86,312,931.17/129,551,249.00 = 53,424,013.93/x - Step 3: Cross multiply
86,312,931.17x = 129,551,249.00 × 53,424,013.93 - Step 4: Simplify right side
86,312,931.17x = 6,921,147,731,034,581 - Step 5: Solve for x
x = 6,921,147,731,034,581/86,312,931.17 - Step 6: Final answer
x = 80,186,683.94
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.