Finding the Fourth Proportional to 1,213,735,592.88, 1,820,398,043.84 and 340,135,901.12
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Solution
The fourth proportional to 1,213,735,592.88, 1,820,398,043.84 and 340,135,901.12 is: 510,146,305.89
Step by Step Solution
- Step 1: Write the proportion equation
1,213,735,592.88 : 1,820,398,043.84 = 340,135,901.12 : x - Step 2: Convert to fraction form
1,213,735,592.88/1,820,398,043.84 = 340,135,901.12/x - Step 3: Cross multiply
1,213,735,592.88x = 1,820,398,043.84 × 340,135,901.12 - Step 4: Simplify right side
1,213,735,592.88x = 619,182,729,038,603,648 - Step 5: Solve for x
x = 619,182,729,038,603,648/1,213,735,592.88 - Step 6: Final answer
x = 510,146,305.89
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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.