Finding the Fourth Proportional to 1,878,715,608.49, 2,592,316,465.15 and 1,085,835,420.69
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Solution
The fourth proportional to 1,878,715,608.49, 2,592,316,465.15 and 1,085,835,420.69 is: 1,498,273,089.75
Step by Step Solution
- Step 1: Write the proportion equation
1,878,715,608.49 : 2,592,316,465.15 = 1,085,835,420.69 : x - Step 2: Convert to fraction form
1,878,715,608.49/2,592,316,465.15 = 1,085,835,420.69/x - Step 3: Cross multiply
1,878,715,608.49x = 2,592,316,465.15 × 1,085,835,420.69 - Step 4: Simplify right side
1,878,715,608.49x = 2,814,829,039,492,335,104 - Step 5: Solve for x
x = 2,814,829,039,492,335,104/1,878,715,608.49 - Step 6: Final answer
x = 1,498,273,089.75
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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.