Finding the Fourth Proportional to 100,063,398.03, 138,088,899.53 and 57,653,518.79
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Solution
The fourth proportional to 100,063,398.03, 138,088,899.53 and 57,653,518.79 is: 79,562,668.48
Step by Step Solution
- Step 1: Write the proportion equation
100,063,398.03 : 138,088,899.53 = 57,653,518.79 : x - Step 2: Convert to fraction form
100,063,398.03/138,088,899.53 = 57,653,518.79/x - Step 3: Cross multiply
100,063,398.03x = 138,088,899.53 × 57,653,518.79 - Step 4: Simplify right side
100,063,398.03x = 7,961,310,964,341,021 - Step 5: Solve for x
x = 7,961,310,964,341,021/100,063,398.03 - Step 6: Final answer
x = 79,562,668.48
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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.