Finding the Fourth Proportional to 159,885,781.80, 239,828,672.70 and 159,885,781.80
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Solution
The fourth proportional to 159,885,781.80, 239,828,672.70 and 159,885,781.80 is: 239,828,672.70
Step by Step Solution
- Step 1: Write the proportion equation
159,885,781.80 : 239,828,672.70 = 159,885,781.80 : x - Step 2: Convert to fraction form
159,885,781.80/239,828,672.70 = 159,885,781.80/x - Step 3: Cross multiply
159,885,781.80x = 239,828,672.70 × 159,885,781.80 - Step 4: Simplify right side
159,885,781.80x = 38,345,194,832,695,816 - Step 5: Solve for x
x = 38,345,194,832,695,816/159,885,781.80 - Step 6: Final answer
x = 239,828,672.70
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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.