Finding the Fourth Proportional to 6,335,236,241.90, 8,742,634,671.36 and 3,438,387,989.20
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Solution
The fourth proportional to 6,335,236,241.90, 8,742,634,671.36 and 3,438,387,989.20 is: 4,744,980,123.89
Step by Step Solution
- Step 1: Write the proportion equation
6,335,236,241.90 : 8,742,634,671.36 = 3,438,387,989.20 : x - Step 2: Convert to fraction form
6,335,236,241.90/8,742,634,671.36 = 3,438,387,989.20/x - Step 3: Cross multiply
6,335,236,241.90x = 8,742,634,671.36 × 3,438,387,989.20 - Step 4: Simplify right side
6,335,236,241.90x = 30,060,570,047,967,715,328 - Step 5: Solve for x
x = 30,060,570,047,967,715,328/6,335,236,241.90 - Step 6: Final answer
x = 4,744,980,123.89
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1.5x scale
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.