Finding the Fourth Proportional to 408,726,321.30, 564,780,135.78 and 291,047,347.62
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Solution
The fourth proportional to 408,726,321.30, 564,780,135.78 and 291,047,347.62 is: 402,170,723.88
Step by Step Solution
- Step 1: Write the proportion equation
408,726,321.30 : 564,780,135.78 = 291,047,347.62 : x - Step 2: Convert to fraction form
408,726,321.30/564,780,135.78 = 291,047,347.62/x - Step 3: Cross multiply
408,726,321.30x = 564,780,135.78 × 291,047,347.62 - Step 4: Simplify right side
408,726,321.30x = 164,377,760,507,232,448 - Step 5: Solve for x
x = 164,377,760,507,232,448/408,726,321.30 - Step 6: Final answer
x = 402,170,723.88
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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.