Finding the Fourth Proportional to 2,587,286,539.40, 3,880,929,809.10 and 1,422,304,881.80
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Solution
The fourth proportional to 2,587,286,539.40, 3,880,929,809.10 and 1,422,304,881.80 is: 2,133,457,322.70
Step by Step Solution
- Step 1: Write the proportion equation
2,587,286,539.40 : 3,880,929,809.10 = 1,422,304,881.80 : x - Step 2: Convert to fraction form
2,587,286,539.40/3,880,929,809.10 = 1,422,304,881.80/x - Step 3: Cross multiply
2,587,286,539.40x = 3,880,929,809.10 × 1,422,304,881.80 - Step 4: Simplify right side
2,587,286,539.40x = 5,519,865,413,406,071,808 - Step 5: Solve for x
x = 5,519,865,413,406,071,808/2,587,286,539.40 - Step 6: Final answer
x = 2,133,457,322.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.