Finding the Fourth Proportional to 77,041,798.09, 106,324,407.43 and 42,241,214.58
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Solution
The fourth proportional to 77,041,798.09, 106,324,407.43 and 42,241,214.58 is: 58,296,563.95
Step by Step Solution
- Step 1: Write the proportion equation
77,041,798.09 : 106,324,407.43 = 42,241,214.58 : x - Step 2: Convert to fraction form
77,041,798.09/106,324,407.43 = 42,241,214.58/x - Step 3: Cross multiply
77,041,798.09x = 106,324,407.43 × 42,241,214.58 - Step 4: Simplify right side
77,041,798.09x = 4,491,272,109,175,079 - Step 5: Solve for x
x = 4,491,272,109,175,079/77,041,798.09 - Step 6: Final answer
x = 58,296,563.95
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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.