Finding the Fourth Proportional to 102,207,503.84, 141,041,020.24 and 55,788,789.68
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Solution
The fourth proportional to 102,207,503.84, 141,041,020.24 and 55,788,789.68 is: 76,985,617.68
Step by Step Solution
- Step 1: Write the proportion equation
102,207,503.84 : 141,041,020.24 = 55,788,789.68 : x - Step 2: Convert to fraction form
102,207,503.84/141,041,020.24 = 55,788,789.68/x - Step 3: Cross multiply
102,207,503.84x = 141,041,020.24 × 55,788,789.68 - Step 4: Simplify right side
102,207,503.84x = 7,868,507,814,421,984 - Step 5: Solve for x
x = 7,868,507,814,421,984/102,207,503.84 - Step 6: Final answer
x = 76,985,617.68
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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.