Finding the Fourth Proportional to 87,679,415.79, 120,997,828.35 and 48,523,892.67
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Solution
The fourth proportional to 87,679,415.79, 120,997,828.35 and 48,523,892.67 is: 66,963,101.70
Step by Step Solution
- Step 1: Write the proportion equation
87,679,415.79 : 120,997,828.35 = 48,523,892.67 : x - Step 2: Convert to fraction form
87,679,415.79/120,997,828.35 = 48,523,892.67/x - Step 3: Cross multiply
87,679,415.79x = 120,997,828.35 × 48,523,892.67 - Step 4: Simplify right side
87,679,415.79x = 5,871,285,636,158,483 - Step 5: Solve for x
x = 5,871,285,636,158,483/87,679,415.79 - Step 6: Final answer
x = 66,963,101.70
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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.