Finding the Fourth Proportional to 1,985,722,759.68, 2,740,490,966.40 and 1,483,058,863.68
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Solution
The fourth proportional to 1,985,722,759.68, 2,740,490,966.40 and 1,483,058,863.68 is: 2,046,765,792.83
Step by Step Solution
- Step 1: Write the proportion equation
1,985,722,759.68 : 2,740,490,966.40 = 1,483,058,863.68 : x - Step 2: Convert to fraction form
1,985,722,759.68/2,740,490,966.40 = 1,483,058,863.68/x - Step 3: Cross multiply
1,985,722,759.68x = 2,740,490,966.40 × 1,483,058,863.68 - Step 4: Simplify right side
1,985,722,759.68x = 4,064,309,418,554,489,344 - Step 5: Solve for x
x = 4,064,309,418,554,489,344/1,985,722,759.68 - Step 6: Final answer
x = 2,046,765,792.83
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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.