Finding the Fourth Proportional to 75,717,837.18, 113,595,863.13 and 21,130,377.66
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Solution
The fourth proportional to 75,717,837.18, 113,595,863.13 and 21,130,377.66 is: 31,700,898.73
Step by Step Solution
- Step 1: Write the proportion equation
75,717,837.18 : 113,595,863.13 = 21,130,377.66 : x - Step 2: Convert to fraction form
75,717,837.18/113,595,863.13 = 21,130,377.66/x - Step 3: Cross multiply
75,717,837.18x = 113,595,863.13 × 21,130,377.66 - Step 4: Simplify right side
75,717,837.18x = 2,400,323,488,550,569.50 - Step 5: Solve for x
x = 2,400,323,488,550,569.50/75,717,837.18 - Step 6: Final answer
x = 31,700,898.73
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.