Finding the Fourth Proportional to 168,531,829.20, 252,804,742.20 and 53,513,125.20
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Solution
The fourth proportional to 168,531,829.20, 252,804,742.20 and 53,513,125.20 is: 80,271,909.97
Step by Step Solution
- Step 1: Write the proportion equation
168,531,829.20 : 252,804,742.20 = 53,513,125.20 : x - Step 2: Convert to fraction form
168,531,829.20/252,804,742.20 = 53,513,125.20/x - Step 3: Cross multiply
168,531,829.20x = 252,804,742.20 × 53,513,125.20 - Step 4: Simplify right side
168,531,829.20x = 13,528,371,820,502,324 - Step 5: Solve for x
x = 13,528,371,820,502,324/168,531,829.20 - Step 6: Final answer
x = 80,271,909.97
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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.