Finding the Fourth Proportional to 45,445,811.36, 68,170,116.72 and 19,873,657.76
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Solution
The fourth proportional to 45,445,811.36, 68,170,116.72 and 19,873,657.76 is: 29,811,098.73
Step by Step Solution
- Step 1: Write the proportion equation
45,445,811.36 : 68,170,116.72 = 19,873,657.76 : x - Step 2: Convert to fraction form
45,445,811.36/68,170,116.72 = 19,873,657.76/x - Step 3: Cross multiply
45,445,811.36x = 68,170,116.72 × 19,873,657.76 - Step 4: Simplify right side
45,445,811.36x = 1,354,789,569,152,533.75 - Step 5: Solve for x
x = 1,354,789,569,152,533.75/45,445,811.36 - Step 6: Final answer
x = 29,811,098.73
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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.