Finding the Fourth Proportional to 96,777,417.60, 145,166,126.40 and 66,121,315.20
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Solution
The fourth proportional to 96,777,417.60, 145,166,126.40 and 66,121,315.20 is: 99,181,972.80
Step by Step Solution
- Step 1: Write the proportion equation
96,777,417.60 : 145,166,126.40 = 66,121,315.20 : x - Step 2: Convert to fraction form
96,777,417.60/145,166,126.40 = 66,121,315.20/x - Step 3: Cross multiply
96,777,417.60x = 145,166,126.40 × 66,121,315.20 - Step 4: Simplify right side
96,777,417.60x = 9,598,575,200,057,442 - Step 5: Solve for x
x = 9,598,575,200,057,442/96,777,417.60 - Step 6: Final answer
x = 99,181,972.80
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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.