Finding the Fourth Proportional to 40,572,638.34, 55,991,594.97 and 22,237,970.82
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Solution
The fourth proportional to 40,572,638.34, 55,991,594.97 and 22,237,970.82 is: 30,689,141.90
Step by Step Solution
- Step 1: Write the proportion equation
40,572,638.34 : 55,991,594.97 = 22,237,970.82 : x - Step 2: Convert to fraction form
40,572,638.34/55,991,594.97 = 22,237,970.82/x - Step 3: Cross multiply
40,572,638.34x = 55,991,594.97 × 22,237,970.82 - Step 4: Simplify right side
40,572,638.34x = 1,245,139,455,108,118.75 - Step 5: Solve for x
x = 1,245,139,455,108,118.75/40,572,638.34 - Step 6: Final answer
x = 30,689,141.90
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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.