Finding the Fourth Proportional to 2,390,156,412.35, 3,585,241,344.62 and 916,747,865.13
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Solution
The fourth proportional to 2,390,156,412.35, 3,585,241,344.62 and 916,747,865.13 is: 1,375,124,377.50
Step by Step Solution
- Step 1: Write the proportion equation
2,390,156,412.35 : 3,585,241,344.62 = 916,747,865.13 : x - Step 2: Convert to fraction form
2,390,156,412.35/3,585,241,344.62 = 916,747,865.13/x - Step 3: Cross multiply
2,390,156,412.35x = 3,585,241,344.62 × 916,747,865.13 - Step 4: Simplify right side
2,390,156,412.35x = 3,286,762,348,658,487,296 - Step 5: Solve for x
x = 3,286,762,348,658,487,296/2,390,156,412.35 - Step 6: Final answer
x = 1,375,124,377.50
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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.