Finding the Fourth Proportional to 3,179,492,977.12, 4,769,950,776.93 and 968,875,702.63
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Solution
The fourth proportional to 3,179,492,977.12, 4,769,950,776.93 and 968,875,702.63 is: 1,453,530,309.32
Step by Step Solution
- Step 1: Write the proportion equation
3,179,492,977.12 : 4,769,950,776.93 = 968,875,702.63 : x - Step 2: Convert to fraction form
3,179,492,977.12/4,769,950,776.93 = 968,875,702.63/x - Step 3: Cross multiply
3,179,492,977.12x = 4,769,950,776.93 × 968,875,702.63 - Step 4: Simplify right side
3,179,492,977.12x = 4,621,489,410,496,644,096 - Step 5: Solve for x
x = 4,621,489,410,496,644,096/3,179,492,977.12 - Step 6: Final answer
x = 1,453,530,309.32
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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.