Finding the Fourth Proportional to 1,913,344,811.58, 2,640,415,818.05 and 1,033,278,515.58
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Solution
The fourth proportional to 1,913,344,811.58, 2,640,415,818.05 and 1,033,278,515.58 is: 1,425,924,339.66
Step by Step Solution
- Step 1: Write the proportion equation
1,913,344,811.58 : 2,640,415,818.05 = 1,033,278,515.58 : x - Step 2: Convert to fraction form
1,913,344,811.58/2,640,415,818.05 = 1,033,278,515.58/x - Step 3: Cross multiply
1,913,344,811.58x = 2,640,415,818.05 × 1,033,278,515.58 - Step 4: Simplify right side
1,913,344,811.58x = 2,728,284,936,997,345,280 - Step 5: Solve for x
x = 2,728,284,936,997,345,280/1,913,344,811.58 - Step 6: Final answer
x = 1,425,924,339.66
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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.