Finding the Fourth Proportional to 104,781,953.08, 143,551,787.92 and 100,854,749.42
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Solution
The fourth proportional to 104,781,953.08, 143,551,787.92 and 100,854,749.42 is: 138,171,499.71
Step by Step Solution
- Step 1: Write the proportion equation
104,781,953.08 : 143,551,787.92 = 100,854,749.42 : x - Step 2: Convert to fraction form
104,781,953.08/143,551,787.92 = 100,854,749.42/x - Step 3: Cross multiply
104,781,953.08x = 143,551,787.92 × 100,854,749.42 - Step 4: Simplify right side
104,781,953.08x = 14,477,879,599,464,582 - Step 5: Solve for x
x = 14,477,879,599,464,582/104,781,953.08 - Step 6: Final answer
x = 138,171,499.71
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.