Finding the Fourth Proportional to 219,842,420.90, 329,774,236.52 and 72,286,713.92
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Solution
The fourth proportional to 219,842,420.90, 329,774,236.52 and 72,286,713.92 is: 108,433,557.99
Step by Step Solution
- Step 1: Write the proportion equation
219,842,420.90 : 329,774,236.52 = 72,286,713.92 : x - Step 2: Convert to fraction form
219,842,420.90/329,774,236.52 = 72,286,713.92/x - Step 3: Cross multiply
219,842,420.90x = 329,774,236.52 × 72,286,713.92 - Step 4: Simplify right side
219,842,420.90x = 23,838,295,893,970,656 - Step 5: Solve for x
x = 23,838,295,893,970,656/219,842,420.90 - Step 6: Final answer
x = 108,433,557.99
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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.