Finding the Fourth Proportional to 771,108,519.60, 1,064,148,244.92 and 418,699,363.68
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Solution
The fourth proportional to 771,108,519.60, 1,064,148,244.92 and 418,699,363.68 is: 577,815,160.49
Step by Step Solution
- Step 1: Write the proportion equation
771,108,519.60 : 1,064,148,244.92 = 418,699,363.68 : x - Step 2: Convert to fraction form
771,108,519.60/1,064,148,244.92 = 418,699,363.68/x - Step 3: Cross multiply
771,108,519.60x = 1,064,148,244.92 × 418,699,363.68 - Step 4: Simplify right side
771,108,519.60x = 445,558,193,009,192,768 - Step 5: Solve for x
x = 445,558,193,009,192,768/771,108,519.60 - Step 6: Final answer
x = 577,815,160.49
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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.