Finding the Fourth Proportional to 1,099,643,985.84, 1,517,540,277.24 and 670,506,449.97
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Solution
The fourth proportional to 1,099,643,985.84, 1,517,540,277.24 and 670,506,449.97 is: 925,318,154.86
Step by Step Solution
- Step 1: Write the proportion equation
1,099,643,985.84 : 1,517,540,277.24 = 670,506,449.97 : x - Step 2: Convert to fraction form
1,099,643,985.84/1,517,540,277.24 = 670,506,449.97/x - Step 3: Cross multiply
1,099,643,985.84x = 1,517,540,277.24 × 670,506,449.97 - Step 4: Simplify right side
1,099,643,985.84x = 1,017,520,543,978,681,984 - Step 5: Solve for x
x = 1,017,520,543,978,681,984/1,099,643,985.84 - Step 6: Final answer
x = 925,318,154.86
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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.