Finding the Fourth Proportional to 63,234,157.68, 87,229,477.53 and 38,461,921.20
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Solution
The fourth proportional to 63,234,157.68, 87,229,477.53 and 38,461,921.20 is: 53,056,977.66
Step by Step Solution
- Step 1: Write the proportion equation
63,234,157.68 : 87,229,477.53 = 38,461,921.20 : x - Step 2: Convert to fraction form
63,234,157.68/87,229,477.53 = 38,461,921.20/x - Step 3: Cross multiply
63,234,157.68x = 87,229,477.53 × 38,461,921.20 - Step 4: Simplify right side
63,234,157.68x = 3,355,013,291,076,031 - Step 5: Solve for x
x = 3,355,013,291,076,031/63,234,157.68 - Step 6: Final answer
x = 53,056,977.66
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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.