Finding the Fourth Proportional to 103,121,606.73, 142,682,553.12 and 89,918,315.79
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Solution
The fourth proportional to 103,121,606.73, 142,682,553.12 and 89,918,315.79 is: 124,414,031.90
Step by Step Solution
- Step 1: Write the proportion equation
103,121,606.73 : 142,682,553.12 = 89,918,315.79 : x - Step 2: Convert to fraction form
103,121,606.73/142,682,553.12 = 89,918,315.79/x - Step 3: Cross multiply
103,121,606.73x = 142,682,553.12 × 89,918,315.79 - Step 4: Simplify right side
103,121,606.73x = 12,829,774,869,167,612 - Step 5: Solve for x
x = 12,829,774,869,167,612/103,121,606.73 - Step 6: Final answer
x = 124,414,031.90
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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.