Finding the Fourth Proportional to 19,144,472.67, 26,429,128.20 and 14,783,769.63
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Solution
The fourth proportional to 19,144,472.67, 26,429,128.20 and 14,783,769.63 is: 20,409,135.82
Step by Step Solution
- Step 1: Write the proportion equation
19,144,472.67 : 26,429,128.20 = 14,783,769.63 : x - Step 2: Convert to fraction form
19,144,472.67/26,429,128.20 = 14,783,769.63/x - Step 3: Cross multiply
19,144,472.67x = 26,429,128.20 × 14,783,769.63 - Step 4: Simplify right side
19,144,472.67x = 390,722,142,830,536.56 - Step 5: Solve for x
x = 390,722,142,830,536.56/19,144,472.67 - Step 6: Final answer
x = 20,409,135.82
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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.