Finding the Fourth Proportional to 9,518,293,349.24, 13,135,363,848.12 and 5,231,974,647.21
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Solution
The fourth proportional to 9,518,293,349.24, 13,135,363,848.12 and 5,231,974,647.21 is: 7,220,190,438.94
Step by Step Solution
- Step 1: Write the proportion equation
9,518,293,349.24 : 13,135,363,848.12 = 5,231,974,647.21 : x - Step 2: Convert to fraction form
9,518,293,349.24/13,135,363,848.12 = 5,231,974,647.21/x - Step 3: Cross multiply
9,518,293,349.24x = 13,135,363,848.12 × 5,231,974,647.21 - Step 4: Simplify right side
9,518,293,349.24x = 68,723,890,635,212,333,056 - Step 5: Solve for x
x = 68,723,890,635,212,333,056/9,518,293,349.24 - Step 6: Final answer
x = 7,220,190,438.94
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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.