Finding the Fourth Proportional to 163,929,725.80, 246,178,023.90 and 87,402,221.80
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Solution
The fourth proportional to 163,929,725.80, 246,178,023.90 and 87,402,221.80 is: 131,254,451.52
Step by Step Solution
- Step 1: Write the proportion equation
163,929,725.80 : 246,178,023.90 = 87,402,221.80 : x - Step 2: Convert to fraction form
163,929,725.80/246,178,023.90 = 87,402,221.80/x - Step 3: Cross multiply
163,929,725.80x = 246,178,023.90 × 87,402,221.80 - Step 4: Simplify right side
163,929,725.80x = 21,516,506,247,193,500 - Step 5: Solve for x
x = 21,516,506,247,193,500/163,929,725.80 - Step 6: Final answer
x = 131,254,451.52
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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.