Finding the Fourth Proportional to 81,352,194.32, 122,028,488.58 and 19,941,627.98
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Solution
The fourth proportional to 81,352,194.32, 122,028,488.58 and 19,941,627.98 is: 29,912,490.28
Step by Step Solution
- Step 1: Write the proportion equation
81,352,194.32 : 122,028,488.58 = 19,941,627.98 : x - Step 2: Convert to fraction form
81,352,194.32/122,028,488.58 = 19,941,627.98/x - Step 3: Cross multiply
81,352,194.32x = 122,028,488.58 × 19,941,627.98 - Step 4: Simplify right side
81,352,194.32x = 2,433,446,722,224,038.50 - Step 5: Solve for x
x = 2,433,446,722,224,038.50/81,352,194.32 - Step 6: Final answer
x = 29,912,490.28
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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.