Finding the Fourth Proportional to 38,833,385.13, 53,589,083.63 and 21,429,502.65
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Solution
The fourth proportional to 38,833,385.13, 53,589,083.63 and 21,429,502.65 is: 29,572,168.53
Step by Step Solution
- Step 1: Write the proportion equation
38,833,385.13 : 53,589,083.63 = 21,429,502.65 : x - Step 2: Convert to fraction form
38,833,385.13/53,589,083.63 = 21,429,502.65/x - Step 3: Cross multiply
38,833,385.13x = 53,589,083.63 × 21,429,502.65 - Step 4: Simplify right side
38,833,385.13x = 1,148,387,409,553,009 - Step 5: Solve for x
x = 1,148,387,409,553,009/38,833,385.13 - Step 6: Final answer
x = 29,572,168.53
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.