Finding the Fourth Proportional to 124,992,874.74, 172,549,979.94 and 83,246,412.72
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Solution
The fourth proportional to 124,992,874.74, 172,549,979.94 and 83,246,412.72 is: 114,919,885.43
Step by Step Solution
- Step 1: Write the proportion equation
124,992,874.74 : 172,549,979.94 = 83,246,412.72 : x - Step 2: Convert to fraction form
124,992,874.74/172,549,979.94 = 83,246,412.72/x - Step 3: Cross multiply
124,992,874.74x = 172,549,979.94 × 83,246,412.72 - Step 4: Simplify right side
124,992,874.74x = 14,364,166,844,912,960 - Step 5: Solve for x
x = 14,364,166,844,912,960/124,992,874.74 - Step 6: Final answer
x = 114,919,885.43
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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.