Finding the Fourth Proportional to 37,972,986.87, 52,402,973.49 and 20,569,332.09
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Solution
The fourth proportional to 37,972,986.87, 52,402,973.49 and 20,569,332.09 is: 28,385,814.58
Step by Step Solution
- Step 1: Write the proportion equation
37,972,986.87 : 52,402,973.49 = 20,569,332.09 : x - Step 2: Convert to fraction form
37,972,986.87/52,402,973.49 = 20,569,332.09/x - Step 3: Cross multiply
37,972,986.87x = 52,402,973.49 × 20,569,332.09 - Step 4: Simplify right side
37,972,986.87x = 1,077,894,164,219,276.38 - Step 5: Solve for x
x = 1,077,894,164,219,276.38/37,972,986.87 - Step 6: Final answer
x = 28,385,814.58
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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.