Finding the Fourth Proportional to 191,091,463.68, 286,634,315.04 and 85,972,571.02
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Solution
The fourth proportional to 191,091,463.68, 286,634,315.04 and 85,972,571.02 is: 128,957,560.59
Step by Step Solution
- Step 1: Write the proportion equation
191,091,463.68 : 286,634,315.04 = 85,972,571.02 : x - Step 2: Convert to fraction form
191,091,463.68/286,634,315.04 = 85,972,571.02/x - Step 3: Cross multiply
191,091,463.68x = 286,634,315.04 × 85,972,571.02 - Step 4: Simplify right side
191,091,463.68x = 24,642,689,006,545,456 - Step 5: Solve for x
x = 24,642,689,006,545,456/191,091,463.68 - Step 6: Final answer
x = 128,957,560.59
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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.