Finding the Fourth Proportional to 97,009,409.20, 145,514,113.80 and 48,494,750.80
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Solution
The fourth proportional to 97,009,409.20, 145,514,113.80 and 48,494,750.80 is: 72,742,126.20
Step by Step Solution
- Step 1: Write the proportion equation
97,009,409.20 : 145,514,113.80 = 48,494,750.80 : x - Step 2: Convert to fraction form
97,009,409.20/145,514,113.80 = 48,494,750.80/x - Step 3: Cross multiply
97,009,409.20x = 145,514,113.80 × 48,494,750.80 - Step 4: Simplify right side
97,009,409.20x = 7,056,670,686,613,841 - Step 5: Solve for x
x = 7,056,670,686,613,841/97,009,409.20 - Step 6: Final answer
x = 72,742,126.20
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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.