Finding the Fourth Proportional to 1,281,924,596.79, 1,925,087,437.17 and 786,842,285.49
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Solution
The fourth proportional to 1,281,924,596.79, 1,925,087,437.17 and 786,842,285.49 is: 1,181,614,115.70
Step by Step Solution
- Step 1: Write the proportion equation
1,281,924,596.79 : 1,925,087,437.17 = 786,842,285.49 : x - Step 2: Convert to fraction form
1,281,924,596.79/1,925,087,437.17 = 786,842,285.49/x - Step 3: Cross multiply
1,281,924,596.79x = 1,925,087,437.17 × 786,842,285.49 - Step 4: Simplify right side
1,281,924,596.79x = 1,514,740,198,831,008,256 - Step 5: Solve for x
x = 1,514,740,198,831,008,256/1,281,924,596.79 - Step 6: Final answer
x = 1,181,614,115.70
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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.