Finding the Fourth Proportional to 865,993,565.73, 1,195,096,326 and 489,642,069.03
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Solution
The fourth proportional to 865,993,565.73, 1,195,096,326 and 489,642,069.03 is: 675,720,306.60
Step by Step Solution
- Step 1: Write the proportion equation
865,993,565.73 : 1,195,096,326 = 489,642,069.03 : x - Step 2: Convert to fraction form
865,993,565.73/1,195,096,326 = 489,642,069.03/x - Step 3: Cross multiply
865,993,565.73x = 1,195,096,326 × 489,642,069.03 - Step 4: Simplify right side
865,993,565.73x = 585,169,437,752,791,296 - Step 5: Solve for x
x = 585,169,437,752,791,296/865,993,565.73 - Step 6: Final answer
x = 675,720,306.60
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.