Finding the Fourth Proportional to 130,457,916.22, 180,032,040.21 and 71,721,580.68
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Solution
The fourth proportional to 130,457,916.22, 180,032,040.21 and 71,721,580.68 is: 98,975,845.02
Step by Step Solution
- Step 1: Write the proportion equation
130,457,916.22 : 180,032,040.21 = 71,721,580.68 : x - Step 2: Convert to fraction form
130,457,916.22/180,032,040.21 = 71,721,580.68/x - Step 3: Cross multiply
130,457,916.22x = 180,032,040.21 × 71,721,580.68 - Step 4: Simplify right side
130,457,916.22x = 12,912,182,496,906,522 - Step 5: Solve for x
x = 12,912,182,496,906,522/130,457,916.22 - Step 6: Final answer
x = 98,975,845.02
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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.