Finding the Fourth Proportional to 3,828,960,987.77, 5,283,966,173.29 and 2,068,828,395.77
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Solution
The fourth proportional to 3,828,960,987.77, 5,283,966,173.29 and 2,068,828,395.77 is: 2,854,983,191.65
Step by Step Solution
- Step 1: Write the proportion equation
3,828,960,987.77 : 5,283,966,173.29 = 2,068,828,395.77 : x - Step 2: Convert to fraction form
3,828,960,987.77/5,283,966,173.29 = 2,068,828,395.77/x - Step 3: Cross multiply
3,828,960,987.77x = 5,283,966,173.29 × 2,068,828,395.77 - Step 4: Simplify right side
3,828,960,987.77x = 10,931,619,261,558,487,040 - Step 5: Solve for x
x = 10,931,619,261,558,487,040/3,828,960,987.77 - Step 6: Final answer
x = 2,854,983,191.65
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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.