Finding the Fourth Proportional to 871,007,735.20, 1,306,511,602.80 and 790,386,167.20
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Solution
The fourth proportional to 871,007,735.20, 1,306,511,602.80 and 790,386,167.20 is: 1,185,579,250.80
Step by Step Solution
- Step 1: Write the proportion equation
871,007,735.20 : 1,306,511,602.80 = 790,386,167.20 : x - Step 2: Convert to fraction form
871,007,735.20/1,306,511,602.80 = 790,386,167.20/x - Step 3: Cross multiply
871,007,735.20x = 1,306,511,602.80 × 790,386,167.20 - Step 4: Simplify right side
871,007,735.20x = 1,032,648,698,139,420,800 - Step 5: Solve for x
x = 1,032,648,698,139,420,800/871,007,735.20 - Step 6: Final answer
x = 1,185,579,250.80
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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.