Finding the Fourth Proportional to 7,578,219,008.88, 11,311,822,663.20 and 6,683,612,487.12
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Solution
The fourth proportional to 7,578,219,008.88, 11,311,822,663.20 and 6,683,612,487.12 is: 9,976,465,329.82
Step by Step Solution
- Step 1: Write the proportion equation
7,578,219,008.88 : 11,311,822,663.20 = 6,683,612,487.12 : x - Step 2: Convert to fraction form
7,578,219,008.88/11,311,822,663.20 = 6,683,612,487.12/x - Step 3: Cross multiply
7,578,219,008.88x = 11,311,822,663.20 × 6,683,612,487.12 - Step 4: Simplify right side
7,578,219,008.88x = 75,603,839,203,850,534,912 - Step 5: Solve for x
x = 75,603,839,203,850,534,912/7,578,219,008.88 - Step 6: Final answer
x = 9,976,465,329.82
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.