Finding the Fourth Proportional to 1,918,779,490.36, 2,878,168,872.42 and 1,046,114,702.20
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Solution
The fourth proportional to 1,918,779,490.36, 2,878,168,872.42 and 1,046,114,702.20 is: 1,569,171,855.33
Step by Step Solution
- Step 1: Write the proportion equation
1,918,779,490.36 : 2,878,168,872.42 = 1,046,114,702.20 : x - Step 2: Convert to fraction form
1,918,779,490.36/2,878,168,872.42 = 1,046,114,702.20/x - Step 3: Cross multiply
1,918,779,490.36x = 2,878,168,872.42 × 1,046,114,702.20 - Step 4: Simplify right side
1,918,779,490.36x = 3,010,894,772,852,958,208 - Step 5: Solve for x
x = 3,010,894,772,852,958,208/1,918,779,490.36 - Step 6: Final answer
x = 1,569,171,855.33
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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.