Finding the Fourth Proportional to 729,639,653.05, 1,095,551,590.79 and 631,575,502.53
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Solution
The fourth proportional to 729,639,653.05, 1,095,551,590.79 and 631,575,502.53 is: 948,308,584.39
Step by Step Solution
- Step 1: Write the proportion equation
729,639,653.05 : 1,095,551,590.79 = 631,575,502.53 : x - Step 2: Convert to fraction form
729,639,653.05/1,095,551,590.79 = 631,575,502.53/x - Step 3: Cross multiply
729,639,653.05x = 1,095,551,590.79 × 631,575,502.53 - Step 4: Simplify right side
729,639,653.05x = 691,923,546,500,735,104 - Step 5: Solve for x
x = 691,923,546,500,735,104/729,639,653.05 - Step 6: Final answer
x = 948,308,584.39
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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.