Finding the Fourth Proportional to 157,440,991.40, 236,205,723.90 and 76,664,594.60
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Solution
The fourth proportional to 157,440,991.40, 236,205,723.90 and 76,664,594.60 is: 115,018,432.65
Step by Step Solution
- Step 1: Write the proportion equation
157,440,991.40 : 236,205,723.90 = 76,664,594.60 : x - Step 2: Convert to fraction form
157,440,991.40/236,205,723.90 = 76,664,594.60/x - Step 3: Cross multiply
157,440,991.40x = 236,205,723.90 × 76,664,594.60 - Step 4: Simplify right side
157,440,991.40x = 18,108,616,064,993,028 - Step 5: Solve for x
x = 18,108,616,064,993,028/157,440,991.40 - Step 6: Final answer
x = 115,018,432.65
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.