Finding the Fourth Proportional to 11,578,670.68, 15,980,478.24 and 6,423,692.98
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Solution
The fourth proportional to 11,578,670.68, 15,980,478.24 and 6,423,692.98 is: 8,865,757.45
Step by Step Solution
- Step 1: Write the proportion equation
11,578,670.68 : 15,980,478.24 = 6,423,692.98 : x - Step 2: Convert to fraction form
11,578,670.68/15,980,478.24 = 6,423,692.98/x - Step 3: Cross multiply
11,578,670.68x = 15,980,478.24 × 6,423,692.98 - Step 4: Simplify right side
11,578,670.68x = 102,653,685,887,330.77 - Step 5: Solve for x
x = 102,653,685,887,330.77/11,578,670.68 - Step 6: Final answer
x = 8,865,757.45
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1.5x scale
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.