Finding the Fourth Proportional to 107,838,822.80, 161,758,234.20 and 47,372,646.80
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Solution
The fourth proportional to 107,838,822.80, 161,758,234.20 and 47,372,646.80 is: 71,058,970.20
Step by Step Solution
- Step 1: Write the proportion equation
107,838,822.80 : 161,758,234.20 = 47,372,646.80 : x - Step 2: Convert to fraction form
107,838,822.80/161,758,234.20 = 47,372,646.80/x - Step 3: Cross multiply
107,838,822.80x = 161,758,234.20 × 47,372,646.80 - Step 4: Simplify right side
107,838,822.80x = 7,662,915,695,748,280 - Step 5: Solve for x
x = 7,662,915,695,748,280/107,838,822.80 - Step 6: Final answer
x = 71,058,970.20
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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.