Finding the Fourth Proportional to 13,102,419.70, 19,653,629.55 and 8,295,831.10
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Solution
The fourth proportional to 13,102,419.70, 19,653,629.55 and 8,295,831.10 is: 12,443,746.65
Step by Step Solution
- Step 1: Write the proportion equation
13,102,419.70 : 19,653,629.55 = 8,295,831.10 : x - Step 2: Convert to fraction form
13,102,419.70/19,653,629.55 = 8,295,831.10/x - Step 3: Cross multiply
13,102,419.70x = 19,653,629.55 × 8,295,831.10 - Step 4: Simplify right side
13,102,419.70x = 163,043,191,248,769 - Step 5: Solve for x
x = 163,043,191,248,769/13,102,419.70 - Step 6: Final answer
x = 12,443,746.65
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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.