Finding the Fourth Proportional to 319,012,501.98, 478,603,816.35 and 114,542,348.70
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Solution
The fourth proportional to 319,012,501.98, 478,603,816.35 and 114,542,348.70 is: 171,844,065.30
Step by Step Solution
- Step 1: Write the proportion equation
319,012,501.98 : 478,603,816.35 = 114,542,348.70 : x - Step 2: Convert to fraction form
319,012,501.98/478,603,816.35 = 114,542,348.70/x - Step 3: Cross multiply
319,012,501.98x = 478,603,816.35 × 114,542,348.70 - Step 4: Simplify right side
319,012,501.98x = 54,820,405,221,512,464 - Step 5: Solve for x
x = 54,820,405,221,512,464/319,012,501.98 - Step 6: Final answer
x = 171,844,065.30
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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.