Finding the Fourth Proportional to 121,993,303.64, 168,351,968.70 and 66,239,180.96
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Solution
The fourth proportional to 121,993,303.64, 168,351,968.70 and 66,239,180.96 is: 91,410,726.54
Step by Step Solution
- Step 1: Write the proportion equation
121,993,303.64 : 168,351,968.70 = 66,239,180.96 : x - Step 2: Convert to fraction form
121,993,303.64/168,351,968.70 = 66,239,180.96/x - Step 3: Cross multiply
121,993,303.64x = 168,351,968.70 × 66,239,180.96 - Step 4: Simplify right side
121,993,303.64x = 11,151,496,518,849,796 - Step 5: Solve for x
x = 11,151,496,518,849,796/121,993,303.64 - Step 6: Final answer
x = 91,410,726.54
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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.