Finding the Fourth Proportional to 2,688,771,471.80, 4,033,157,207.70 and 646,358,415.80
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Solution
The fourth proportional to 2,688,771,471.80, 4,033,157,207.70 and 646,358,415.80 is: 969,537,623.70
Step by Step Solution
- Step 1: Write the proportion equation
2,688,771,471.80 : 4,033,157,207.70 = 646,358,415.80 : x - Step 2: Convert to fraction form
2,688,771,471.80/4,033,157,207.70 = 646,358,415.80/x - Step 3: Cross multiply
2,688,771,471.80x = 4,033,157,207.70 × 646,358,415.80 - Step 4: Simplify right side
2,688,771,471.80x = 2,606,865,103,441,323,008 - Step 5: Solve for x
x = 2,606,865,103,441,323,008/2,688,771,471.80 - Step 6: Final answer
x = 969,537,623.70
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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.