Finding the Fourth Proportional to 91,412,753.14, 137,038,416.21 and 69,943,201.03
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Solution
The fourth proportional to 91,412,753.14, 137,038,416.21 and 69,943,201.03 is: 104,853,044.73
Step by Step Solution
- Step 1: Write the proportion equation
91,412,753.14 : 137,038,416.21 = 69,943,201.03 : x - Step 2: Convert to fraction form
91,412,753.14/137,038,416.21 = 69,943,201.03/x - Step 3: Cross multiply
91,412,753.14x = 137,038,416.21 × 69,943,201.03 - Step 4: Simplify right side
91,412,753.14x = 9,584,905,493,808,842 - Step 5: Solve for x
x = 9,584,905,493,808,842/91,412,753.14 - Step 6: Final answer
x = 104,853,044.73
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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.