Finding the Fourth Proportional to 771,328,628.70, 1,156,992,943.05 and 538,876,335.30
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Solution
The fourth proportional to 771,328,628.70, 1,156,992,943.05 and 538,876,335.30 is: 808,314,502.95
Step by Step Solution
- Step 1: Write the proportion equation
771,328,628.70 : 1,156,992,943.05 = 538,876,335.30 : x - Step 2: Convert to fraction form
771,328,628.70/1,156,992,943.05 = 538,876,335.30/x - Step 3: Cross multiply
771,328,628.70x = 1,156,992,943.05 × 538,876,335.30 - Step 4: Simplify right side
771,328,628.70x = 623,476,117,118,745,472 - Step 5: Solve for x
x = 623,476,117,118,745,472/771,328,628.70 - Step 6: Final answer
x = 808,314,502.95
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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.