Finding the Fourth Proportional to 517,779,390.08, 714,535,530.99 and 279,624,551.60
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Solution
The fourth proportional to 517,779,390.08, 714,535,530.99 and 279,624,551.60 is: 385,881,866.44
Step by Step Solution
- Step 1: Write the proportion equation
517,779,390.08 : 714,535,530.99 = 279,624,551.60 : x - Step 2: Convert to fraction form
517,779,390.08/714,535,530.99 = 279,624,551.60/x - Step 3: Cross multiply
517,779,390.08x = 714,535,530.99 × 279,624,551.60 - Step 4: Simplify right side
517,779,390.08x = 199,801,677,450,375,872 - Step 5: Solve for x
x = 199,801,677,450,375,872/517,779,390.08 - Step 6: Final answer
x = 385,881,866.44
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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.