Finding the Fourth Proportional to 147,778,555.98, 203,925,642.44 and 81,695,113.28
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Solution
The fourth proportional to 147,778,555.98, 203,925,642.44 and 81,695,113.28 is: 112,734,410.95
Step by Step Solution
- Step 1: Write the proportion equation
147,778,555.98 : 203,925,642.44 = 81,695,113.28 : x - Step 2: Convert to fraction form
147,778,555.98/203,925,642.44 = 81,695,113.28/x - Step 3: Cross multiply
147,778,555.98x = 203,925,642.44 × 81,695,113.28 - Step 4: Simplify right side
147,778,555.98x = 16,659,728,459,832,576 - Step 5: Solve for x
x = 16,659,728,459,832,576/147,778,555.98 - Step 6: Final answer
x = 112,734,410.95
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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.