Finding the Fourth Proportional to 266,928,825.06, 368,365,581.18 and 153,896,080.68
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Solution
The fourth proportional to 266,928,825.06, 368,365,581.18 and 153,896,080.68 is: 212,378,783.70
Step by Step Solution
- Step 1: Write the proportion equation
266,928,825.06 : 368,365,581.18 = 153,896,080.68 : x - Step 2: Convert to fraction form
266,928,825.06/368,365,581.18 = 153,896,080.68/x - Step 3: Cross multiply
266,928,825.06x = 368,365,581.18 × 153,896,080.68 - Step 4: Simplify right side
266,928,825.06x = 56,690,019,201,012,376 - Step 5: Solve for x
x = 56,690,019,201,012,376/266,928,825.06 - Step 6: Final answer
x = 212,378,783.70
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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.