Finding the Fourth Proportional to 152,319,994.76, 210,195,697.68 and 82,703,782.55
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Solution
The fourth proportional to 152,319,994.76, 210,195,697.68 and 82,703,782.55 is: 114,128,019.12
Step by Step Solution
- Step 1: Write the proportion equation
152,319,994.76 : 210,195,697.68 = 82,703,782.55 : x - Step 2: Convert to fraction form
152,319,994.76/210,195,697.68 = 82,703,782.55/x - Step 3: Cross multiply
152,319,994.76x = 210,195,697.68 × 82,703,782.55 - Step 4: Simplify right side
152,319,994.76x = 17,383,979,274,397,748 - Step 5: Solve for x
x = 17,383,979,274,397,748/152,319,994.76 - Step 6: Final answer
x = 114,128,019.12
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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.