Finding the Fourth Proportional to 32,689,985.18, 45,112,177.41 and 18,946,920.98
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Solution
The fourth proportional to 32,689,985.18, 45,112,177.41 and 18,946,920.98 is: 26,146,749.71
Step by Step Solution
- Step 1: Write the proportion equation
32,689,985.18 : 45,112,177.41 = 18,946,920.98 : x - Step 2: Convert to fraction form
32,689,985.18/45,112,177.41 = 18,946,920.98/x - Step 3: Cross multiply
32,689,985.18x = 45,112,177.41 × 18,946,920.98 - Step 4: Simplify right side
32,689,985.18x = 854,736,860,623,011 - Step 5: Solve for x
x = 854,736,860,623,011/32,689,985.18 - Step 6: Final answer
x = 26,146,749.71
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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.