Finding the Fourth Proportional to 2,989,361,951.19, 4,125,444,820.70 and 1,719,203,926.53
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Solution
The fourth proportional to 2,989,361,951.19, 4,125,444,820.70 and 1,719,203,926.53 is: 2,372,573,495.70
Step by Step Solution
- Step 1: Write the proportion equation
2,989,361,951.19 : 4,125,444,820.70 = 1,719,203,926.53 : x - Step 2: Convert to fraction form
2,989,361,951.19/4,125,444,820.70 = 1,719,203,926.53/x - Step 3: Cross multiply
2,989,361,951.19x = 4,125,444,820.70 × 1,719,203,926.53 - Step 4: Simplify right side
2,989,361,951.19x = 7,092,480,934,439,917,568 - Step 5: Solve for x
x = 7,092,480,934,439,917,568/2,989,361,951.19 - Step 6: Final answer
x = 2,372,573,495.70
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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.