Finding the Fourth Proportional to 1,027,696,263.76, 1,418,217,251.88 and 557,797,558.96
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Solution
The fourth proportional to 1,027,696,263.76, 1,418,217,251.88 and 557,797,558.96 is: 769,758,681.69
Step by Step Solution
- Step 1: Write the proportion equation
1,027,696,263.76 : 1,418,217,251.88 = 557,797,558.96 : x - Step 2: Convert to fraction form
1,027,696,263.76/1,418,217,251.88 = 557,797,558.96/x - Step 3: Cross multiply
1,027,696,263.76x = 1,418,217,251.88 × 557,797,558.96 - Step 4: Simplify right side
1,027,696,263.76x = 791,078,121,173,623,552 - Step 5: Solve for x
x = 791,078,121,173,623,552/1,027,696,263.76 - Step 6: Final answer
x = 769,758,681.69
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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.