Finding the Fourth Proportional to 1,684,668,148.55, 2,324,772,202.46 and 921,708,475.11
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Solution
The fourth proportional to 1,684,668,148.55, 2,324,772,202.46 and 921,708,475.11 is: 1,271,919,483.70
Step by Step Solution
- Step 1: Write the proportion equation
1,684,668,148.55 : 2,324,772,202.46 = 921,708,475.11 : x - Step 2: Convert to fraction form
1,684,668,148.55/2,324,772,202.46 = 921,708,475.11/x - Step 3: Cross multiply
1,684,668,148.55x = 2,324,772,202.46 × 921,708,475.11 - Step 4: Simplify right side
1,684,668,148.55x = 2,142,762,241,702,914,304 - Step 5: Solve for x
x = 2,142,762,241,702,914,304/1,684,668,148.55 - Step 6: Final answer
x = 1,271,919,483.70
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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.