Finding the Fourth Proportional to 124,873,649.80, 172,321,895.66 and 69,121,355.46
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Solution
The fourth proportional to 124,873,649.80, 172,321,895.66 and 69,121,355.46 is: 95,385,399.74
Step by Step Solution
- Step 1: Write the proportion equation
124,873,649.80 : 172,321,895.66 = 69,121,355.46 : x - Step 2: Convert to fraction form
124,873,649.80/172,321,895.66 = 69,121,355.46/x - Step 3: Cross multiply
124,873,649.80x = 172,321,895.66 × 69,121,355.46 - Step 4: Simplify right side
124,873,649.80x = 11,911,123,003,455,890 - Step 5: Solve for x
x = 11,911,123,003,455,890/124,873,649.80 - Step 6: Final answer
x = 95,385,399.74
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.