Finding the Fourth Proportional to 168,427,491.80, 252,617,618.10 and 53,423,659.40
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Solution
The fourth proportional to 168,427,491.80, 252,617,618.10 and 53,423,659.40 is: 80,127,997.18
Step by Step Solution
- Step 1: Write the proportion equation
168,427,491.80 : 252,617,618.10 = 53,423,659.40 : x - Step 2: Convert to fraction form
168,427,491.80/252,617,618.10 = 53,423,659.40/x - Step 3: Cross multiply
168,427,491.80x = 252,617,618.10 × 53,423,659.40 - Step 4: Simplify right side
168,427,491.80x = 13,495,757,587,813,674 - Step 5: Solve for x
x = 13,495,757,587,813,674/168,427,491.80 - Step 6: Final answer
x = 80,127,997.18
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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.