Finding the Fourth Proportional to 151,610,113.22, 209,221,956.56 and 81,995,494.08
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Solution
The fourth proportional to 151,610,113.22, 209,221,956.56 and 81,995,494.08 is: 113,153,782.00
Step by Step Solution
- Step 1: Write the proportion equation
151,610,113.22 : 209,221,956.56 = 81,995,494.08 : x - Step 2: Convert to fraction form
151,610,113.22/209,221,956.56 = 81,995,494.08/x - Step 3: Cross multiply
151,610,113.22x = 209,221,956.56 × 81,995,494.08 - Step 4: Simplify right side
151,610,113.22x = 17,155,257,700,111,520 - Step 5: Solve for x
x = 17,155,257,700,111,520/151,610,113.22 - Step 6: Final answer
x = 113,153,782.00
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.