Finding the Fourth Proportional to 120,178,518.68, 180,242,552.34 and 33,896,747.78
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Solution
The fourth proportional to 120,178,518.68, 180,242,552.34 and 33,896,747.78 is: 50,838,006.68
Step by Step Solution
- Step 1: Write the proportion equation
120,178,518.68 : 180,242,552.34 = 33,896,747.78 : x - Step 2: Convert to fraction form
120,178,518.68/180,242,552.34 = 33,896,747.78/x - Step 3: Cross multiply
120,178,518.68x = 180,242,552.34 × 33,896,747.78 - Step 4: Simplify right side
120,178,518.68x = 6,109,636,335,892,429 - Step 5: Solve for x
x = 6,109,636,335,892,429/120,178,518.68 - Step 6: Final answer
x = 50,838,006.68
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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.