Finding the Fourth Proportional to 97,009,909.30, 145,514,863.95 and 66,398,907.70
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Solution
The fourth proportional to 97,009,909.30, 145,514,863.95 and 66,398,907.70 is: 99,598,361.55
Step by Step Solution
- Step 1: Write the proportion equation
97,009,909.30 : 145,514,863.95 = 66,398,907.70 : x - Step 2: Convert to fraction form
97,009,909.30/145,514,863.95 = 66,398,907.70/x - Step 3: Cross multiply
97,009,909.30x = 145,514,863.95 × 66,398,907.70 - Step 4: Simplify right side
97,009,909.30x = 9,662,028,020,394,108 - Step 5: Solve for x
x = 9,662,028,020,394,108/97,009,909.30 - Step 6: Final answer
x = 99,598,361.55
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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.