Finding the Fourth Proportional to 106,996,920.70, 160,495,381.05 and 68,733,168.70
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Solution
The fourth proportional to 106,996,920.70, 160,495,381.05 and 68,733,168.70 is: 103,099,753.05
Step by Step Solution
- Step 1: Write the proportion equation
106,996,920.70 : 160,495,381.05 = 68,733,168.70 : x - Step 2: Convert to fraction form
106,996,920.70/160,495,381.05 = 68,733,168.70/x - Step 3: Cross multiply
106,996,920.70x = 160,495,381.05 × 68,733,168.70 - Step 4: Simplify right side
106,996,920.70x = 11,031,356,101,280,434 - Step 5: Solve for x
x = 11,031,356,101,280,434/106,996,920.70 - Step 6: Final answer
x = 103,099,753.05
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.