Finding the Fourth Proportional to 1,623,616,058.40, 2,240,590,160.84 and 881,060,121.15
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Solution
The fourth proportional to 1,623,616,058.40, 2,240,590,160.84 and 881,060,121.15 is: 1,215,862,967.32
Step by Step Solution
- Step 1: Write the proportion equation
1,623,616,058.40 : 2,240,590,160.84 = 881,060,121.15 : x - Step 2: Convert to fraction form
1,623,616,058.40/2,240,590,160.84 = 881,060,121.15/x - Step 3: Cross multiply
1,623,616,058.40x = 2,240,590,160.84 × 881,060,121.15 - Step 4: Simplify right side
1,623,616,058.40x = 1,974,094,638,557,188,352 - Step 5: Solve for x
x = 1,974,094,638,557,188,352/1,623,616,058.40 - Step 6: Final answer
x = 1,215,862,967.32
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1.5x scale
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.