Finding the Fourth Proportional to 918,518,423.70, 1,377,777,635.55 and 880,254,671.70
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Solution
The fourth proportional to 918,518,423.70, 1,377,777,635.55 and 880,254,671.70 is: 1,320,382,007.55
Step by Step Solution
- Step 1: Write the proportion equation
918,518,423.70 : 1,377,777,635.55 = 880,254,671.70 : x - Step 2: Convert to fraction form
918,518,423.70/1,377,777,635.55 = 880,254,671.70/x - Step 3: Cross multiply
918,518,423.70x = 1,377,777,635.55 × 880,254,671.70 - Step 4: Simplify right side
918,518,423.70x = 1,212,795,200,256,667,648 - Step 5: Solve for x
x = 1,212,795,200,256,667,648/918,518,423.70 - Step 6: Final answer
x = 1,320,382,007.55
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Similar ratio
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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.