Finding the Fourth Proportional to 2,158,408,712.36, 3,237,921,910.56 and 664,566,652.28
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Solution
The fourth proportional to 2,158,408,712.36, 3,237,921,910.56 and 664,566,652.28 is: 996,945,069.82
Step by Step Solution
- Step 1: Write the proportion equation
2,158,408,712.36 : 3,237,921,910.56 = 664,566,652.28 : x - Step 2: Convert to fraction form
2,158,408,712.36/3,237,921,910.56 = 664,566,652.28/x - Step 3: Cross multiply
2,158,408,712.36x = 3,237,921,910.56 × 664,566,652.28 - Step 4: Simplify right side
2,158,408,712.36x = 2,151,814,924,444,920,576 - Step 5: Solve for x
x = 2,151,814,924,444,920,576/2,158,408,712.36 - Step 6: Final answer
x = 996,945,069.82
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1.5x scale
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.