Finding the Fourth Proportional to 551,831,431.21, 827,750,135.71 and 163,657,624.79
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Solution
The fourth proportional to 551,831,431.21, 827,750,135.71 and 163,657,624.79 is: 245,487,323.61
Step by Step Solution
- Step 1: Write the proportion equation
551,831,431.21 : 827,750,135.71 = 163,657,624.79 : x - Step 2: Convert to fraction form
551,831,431.21/827,750,135.71 = 163,657,624.79/x - Step 3: Cross multiply
551,831,431.21x = 827,750,135.71 × 163,657,624.79 - Step 4: Simplify right side
551,831,431.21x = 135,467,621,129,898,752 - Step 5: Solve for x
x = 135,467,621,129,898,752/551,831,431.21 - Step 6: Final answer
x = 245,487,323.61
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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.