Finding the Fourth Proportional to 76,688,676,749.70, 115,033,015,124.55 and 58,092,493,277.70
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Solution
The fourth proportional to 76,688,676,749.70, 115,033,015,124.55 and 58,092,493,277.70 is: 87,138,739,916.55
Step by Step Solution
- Step 1: Write the proportion equation
76,688,676,749.70 : 115,033,015,124.55 = 58,092,493,277.70 : x - Step 2: Convert to fraction form
76,688,676,749.70/115,033,015,124.55 = 58,092,493,277.70/x - Step 3: Cross multiply
76,688,676,749.70x = 115,033,015,124.55 × 58,092,493,277.70 - Step 4: Simplify right side
76,688,676,749.70x = 6,682,554,657,836,483,215,360 - Step 5: Solve for x
x = 6,682,554,657,836,483,215,360/76,688,676,749.70 - Step 6: Final answer
x = 87,138,739,916.55
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1.5x scale
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.