Finding the Fourth Proportional to 178,229,121.24, 245,970,911.52 and 98,869,769.14
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Solution
The fourth proportional to 178,229,121.24, 245,970,911.52 and 98,869,769.14 is: 136,448,449.43
Step by Step Solution
- Step 1: Write the proportion equation
178,229,121.24 : 245,970,911.52 = 98,869,769.14 : x - Step 2: Convert to fraction form
178,229,121.24/245,970,911.52 = 98,869,769.14/x - Step 3: Cross multiply
178,229,121.24x = 245,970,911.52 × 98,869,769.14 - Step 4: Simplify right side
178,229,121.24x = 24,319,087,236,769,484 - Step 5: Solve for x
x = 24,319,087,236,769,484/178,229,121.24 - Step 6: Final answer
x = 136,448,449.43
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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.