Finding the Fourth Proportional to 64,638,101.70, 96,957,152.55 and 21,508,712.10
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Solution
The fourth proportional to 64,638,101.70, 96,957,152.55 and 21,508,712.10 is: 32,263,068.15
Step by Step Solution
- Step 1: Write the proportion equation
64,638,101.70 : 96,957,152.55 = 21,508,712.10 : x - Step 2: Convert to fraction form
64,638,101.70/96,957,152.55 = 21,508,712.10/x - Step 3: Cross multiply
64,638,101.70x = 96,957,152.55 × 21,508,712.10 - Step 4: Simplify right side
64,638,101.70x = 2,085,423,480,233,731 - Step 5: Solve for x
x = 2,085,423,480,233,731/64,638,101.70 - Step 6: Final answer
x = 32,263,068.15
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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.