Finding the Fourth Proportional to 621,228,680,621.48, 931,019,257,464.08 and 319,029,075,208.99
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Solution
The fourth proportional to 621,228,680,621.48, 931,019,257,464.08 and 319,029,075,208.99 is: 478,120,572,948.09
Step by Step Solution
- Step 1: Write the proportion equation
621,228,680,621.48 : 931,019,257,464.08 = 319,029,075,208.99 : x - Step 2: Convert to fraction form
621,228,680,621.48/931,019,257,464.08 = 319,029,075,208.99/x - Step 3: Cross multiply
621,228,680,621.48x = 931,019,257,464.08 × 319,029,075,208.99 - Step 4: Simplify right side
621,228,680,621.48x = 297,022,212,710,525,992,697,856 - Step 5: Solve for x
x = 297,022,212,710,525,992,697,856/621,228,680,621.48 - Step 6: Final answer
x = 478,120,572,948.09
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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.