Finding the Fourth Proportional to 161,438,590,981.80, 242,157,886,472.70 and 98,676,471,763.80
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Solution
The fourth proportional to 161,438,590,981.80, 242,157,886,472.70 and 98,676,471,763.80 is: 148,014,707,645.70
Step by Step Solution
- Step 1: Write the proportion equation
161,438,590,981.80 : 242,157,886,472.70 = 98,676,471,763.80 : x - Step 2: Convert to fraction form
161,438,590,981.80/242,157,886,472.70 = 98,676,471,763.80/x - Step 3: Cross multiply
161,438,590,981.80x = 242,157,886,472.70 × 98,676,471,763.80 - Step 4: Simplify right side
161,438,590,981.80x = 23,895,285,846,904,867,389,440 - Step 5: Solve for x
x = 23,895,285,846,904,867,389,440/161,438,590,981.80 - Step 6: Final answer
x = 148,014,707,645.70
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1.5x scale
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.