Finding the Fourth Proportional to 120,178,587.18, 180,242,655.06 and 33,896,816.26
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Solution
The fourth proportional to 120,178,587.18, 180,242,655.06 and 33,896,816.26 is: 50,838,109.38
Step by Step Solution
- Step 1: Write the proportion equation
120,178,587.18 : 180,242,655.06 = 33,896,816.26 : x - Step 2: Convert to fraction form
120,178,587.18/180,242,655.06 = 33,896,816.26/x - Step 3: Cross multiply
120,178,587.18x = 180,242,655.06 × 33,896,816.26 - Step 4: Simplify right side
120,178,587.18x = 6,109,652,160,783,379 - Step 5: Solve for x
x = 6,109,652,160,783,379/120,178,587.18 - Step 6: Final answer
x = 50,838,109.38
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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.