Finding the Fourth Proportional to 2,158,408,713.10, 3,237,921,911.62 and 664,566,653.00
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Solution
The fourth proportional to 2,158,408,713.10, 3,237,921,911.62 and 664,566,653.00 is: 996,945,070.88
Step by Step Solution
- Step 1: Write the proportion equation
2,158,408,713.10 : 3,237,921,911.62 = 664,566,653.00 : x - Step 2: Convert to fraction form
2,158,408,713.10/3,237,921,911.62 = 664,566,653.00/x - Step 3: Cross multiply
2,158,408,713.10x = 3,237,921,911.62 × 664,566,653.00 - Step 4: Simplify right side
2,158,408,713.10x = 2,151,814,927,464,475,648 - Step 5: Solve for x
x = 2,151,814,927,464,475,648/2,158,408,713.10 - Step 6: Final answer
x = 996,945,070.88
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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.