Finding the Fourth Proportional to 689,731,116.24, 1,035,053,617.17 and 379,055,689.75
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Solution
The fourth proportional to 689,731,116.24, 1,035,053,617.17 and 379,055,689.75 is: 568,834,656.78
Step by Step Solution
- Step 1: Write the proportion equation
689,731,116.24 : 1,035,053,617.17 = 379,055,689.75 : x - Step 2: Convert to fraction form
689,731,116.24/1,035,053,617.17 = 379,055,689.75/x - Step 3: Cross multiply
689,731,116.24x = 1,035,053,617.17 × 379,055,689.75 - Step 4: Simplify right side
689,731,116.24x = 392,342,962,779,431,488 - Step 5: Solve for x
x = 392,342,962,779,431,488/689,731,116.24 - Step 6: Final answer
x = 568,834,656.78
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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.