Finding the Fourth Proportional to 528,830,451.24, 729,016,878.96 and 369,566,108.79
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Solution
The fourth proportional to 528,830,451.24, 729,016,878.96 and 369,566,108.79 is: 509,463,724.28
Step by Step Solution
- Step 1: Write the proportion equation
528,830,451.24 : 729,016,878.96 = 369,566,108.79 : x - Step 2: Convert to fraction form
528,830,451.24/729,016,878.96 = 369,566,108.79/x - Step 3: Cross multiply
528,830,451.24x = 729,016,878.96 × 369,566,108.79 - Step 4: Simplify right side
528,830,451.24x = 269,419,931,199,477,664 - Step 5: Solve for x
x = 269,419,931,199,477,664/528,830,451.24 - Step 6: Final answer
x = 509,463,724.28
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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.