Finding the Fourth Proportional to 528,830,438.00, 729,016,860.80 and 369,566,095.55
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Solution
The fourth proportional to 528,830,438.00, 729,016,860.80 and 369,566,095.55 is: 509,463,706.08
Step by Step Solution
- Step 1: Write the proportion equation
528,830,438.00 : 729,016,860.80 = 369,566,095.55 : x - Step 2: Convert to fraction form
528,830,438.00/729,016,860.80 = 369,566,095.55/x - Step 3: Cross multiply
528,830,438.00x = 729,016,860.80 × 369,566,095.55 - Step 4: Simplify right side
528,830,438.00x = 269,419,914,830,480,928 - Step 5: Solve for x
x = 269,419,914,830,480,928/528,830,438.00 - Step 6: Final answer
x = 509,463,706.08
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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.