Finding the Fourth Proportional to 157,219,958.92, 216,960,637.17 and 85,693,456.84
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Solution
The fourth proportional to 157,219,958.92, 216,960,637.17 and 85,693,456.84 is: 118,255,386.43
Step by Step Solution
- Step 1: Write the proportion equation
157,219,958.92 : 216,960,637.17 = 85,693,456.84 : x - Step 2: Convert to fraction form
157,219,958.92/216,960,637.17 = 85,693,456.84/x - Step 3: Cross multiply
157,219,958.92x = 216,960,637.17 × 85,693,456.84 - Step 4: Simplify right side
157,219,958.92x = 18,592,106,997,306,296 - Step 5: Solve for x
x = 18,592,106,997,306,296/157,219,958.92 - Step 6: Final answer
x = 118,255,386.43
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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.