Finding the Fourth Proportional to 489,915,746.10, 734,873,619.15 and 486,514,523.70
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Solution
The fourth proportional to 489,915,746.10, 734,873,619.15 and 486,514,523.70 is: 729,771,785.55
Step by Step Solution
- Step 1: Write the proportion equation
489,915,746.10 : 734,873,619.15 = 486,514,523.70 : x - Step 2: Convert to fraction form
489,915,746.10/734,873,619.15 = 486,514,523.70/x - Step 3: Cross multiply
489,915,746.10x = 734,873,619.15 × 486,514,523.70 - Step 4: Simplify right side
489,915,746.10x = 357,526,688,800,457,408 - Step 5: Solve for x
x = 357,526,688,800,457,408/489,915,746.10 - Step 6: Final answer
x = 729,771,785.55
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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.