Finding the Fourth Proportional to 168,427,432.80, 252,617,529.60 and 53,423,600.40
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Solution
The fourth proportional to 168,427,432.80, 252,617,529.60 and 53,423,600.40 is: 80,127,908.68
Step by Step Solution
- Step 1: Write the proportion equation
168,427,432.80 : 252,617,529.60 = 53,423,600.40 : x - Step 2: Convert to fraction form
168,427,432.80/252,617,529.60 = 53,423,600.40/x - Step 3: Cross multiply
168,427,432.80x = 252,617,529.60 × 53,423,600.40 - Step 4: Simplify right side
168,427,432.80x = 13,495,737,955,385,572 - Step 5: Solve for x
x = 13,495,737,955,385,572/168,427,432.80 - Step 6: Final answer
x = 80,127,908.68
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1.5x scale
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.