Finding the Fourth Proportional to 1,137,317,888.72, 1,706,040,648.12 and 319,366,416.08
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Solution
The fourth proportional to 1,137,317,888.72, 1,706,040,648.12 and 319,366,416.08 is: 479,067,543.81
Step by Step Solution
- Step 1: Write the proportion equation
1,137,317,888.72 : 1,706,040,648.12 = 319,366,416.08 : x - Step 2: Convert to fraction form
1,137,317,888.72/1,706,040,648.12 = 319,366,416.08/x - Step 3: Cross multiply
1,137,317,888.72x = 1,706,040,648.12 × 319,366,416.08 - Step 4: Simplify right side
1,137,317,888.72x = 544,852,087,476,884,736 - Step 5: Solve for x
x = 544,852,087,476,884,736/1,137,317,888.72 - Step 6: Final answer
x = 479,067,543.81
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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.