Finding the Fourth Proportional to 254,201,550.80, 381,302,326.20 and 72,425,109.20
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Solution
The fourth proportional to 254,201,550.80, 381,302,326.20 and 72,425,109.20 is: 108,637,663.80
Step by Step Solution
- Step 1: Write the proportion equation
254,201,550.80 : 381,302,326.20 = 72,425,109.20 : x - Step 2: Convert to fraction form
254,201,550.80/381,302,326.20 = 72,425,109.20/x - Step 3: Cross multiply
254,201,550.80x = 381,302,326.20 × 72,425,109.20 - Step 4: Simplify right side
254,201,550.80x = 27,615,862,613,249,020 - Step 5: Solve for x
x = 27,615,862,613,249,020/254,201,550.80 - Step 6: Final answer
x = 108,637,663.80
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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.