Finding the Fourth Proportional to 2,987,130,801.97, 4,122,253,673.07 and 1,649,031,887.29
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Solution
The fourth proportional to 2,987,130,801.97, 4,122,253,673.07 and 1,649,031,887.29 is: 2,275,671,272.88
Step by Step Solution
- Step 1: Write the proportion equation
2,987,130,801.97 : 4,122,253,673.07 = 1,649,031,887.29 : x - Step 2: Convert to fraction form
2,987,130,801.97/4,122,253,673.07 = 1,649,031,887.29/x - Step 3: Cross multiply
2,987,130,801.97x = 4,122,253,673.07 × 1,649,031,887.29 - Step 4: Simplify right side
2,987,130,801.97x = 6,797,727,754,370,146,304 - Step 5: Solve for x
x = 6,797,727,754,370,146,304/2,987,130,801.97 - Step 6: Final answer
x = 2,275,671,272.88
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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.