Finding the Fourth Proportional to 97,009,416.20, 145,514,124.30 and 48,494,757.80
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Solution
The fourth proportional to 97,009,416.20, 145,514,124.30 and 48,494,757.80 is: 72,742,136.70
Step by Step Solution
- Step 1: Write the proportion equation
97,009,416.20 : 145,514,124.30 = 48,494,757.80 : x - Step 2: Convert to fraction form
97,009,416.20/145,514,124.30 = 48,494,757.80/x - Step 3: Cross multiply
97,009,416.20x = 145,514,124.30 × 48,494,757.80 - Step 4: Simplify right side
97,009,416.20x = 7,056,672,214,407,595 - Step 5: Solve for x
x = 7,056,672,214,407,595/97,009,416.20 - Step 6: Final answer
x = 72,742,136.70
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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.