Finding the Fourth Proportional to 110,309,893.43, 165,249,581.36 and 85,934,687.63
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Solution
The fourth proportional to 110,309,893.43, 165,249,581.36 and 85,934,687.63 is: 128,734,338.44
Step by Step Solution
- Step 1: Write the proportion equation
110,309,893.43 : 165,249,581.36 = 85,934,687.63 : x - Step 2: Convert to fraction form
110,309,893.43/165,249,581.36 = 85,934,687.63/x - Step 3: Cross multiply
110,309,893.43x = 165,249,581.36 × 85,934,687.63 - Step 4: Simplify right side
110,309,893.43x = 14,200,671,153,903,948 - Step 5: Solve for x
x = 14,200,671,153,903,948/110,309,893.43 - Step 6: Final answer
x = 128,734,338.44
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.