Finding the Fourth Proportional to 1,081,737,853.12, 1,492,832,029.08 and 611,829,978.96
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Solution
The fourth proportional to 1,081,737,853.12, 1,492,832,029.08 and 611,829,978.96 is: 844,344,483.56
Step by Step Solution
- Step 1: Write the proportion equation
1,081,737,853.12 : 1,492,832,029.08 = 611,829,978.96 : x - Step 2: Convert to fraction form
1,081,737,853.12/1,492,832,029.08 = 611,829,978.96/x - Step 3: Cross multiply
1,081,737,853.12x = 1,492,832,029.08 × 611,829,978.96 - Step 4: Simplify right side
1,081,737,853.12x = 913,359,388,942,830,464 - Step 5: Solve for x
x = 913,359,388,942,830,464/1,081,737,853.12 - Step 6: Final answer
x = 844,344,483.56
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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.