Finding the Fourth Proportional to 27,219,408.24, 40,817,487.09 and 12,637,331.51
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Solution
The fourth proportional to 27,219,408.24, 40,817,487.09 and 12,637,331.51 is: 18,950,599.92
Step by Step Solution
- Step 1: Write the proportion equation
27,219,408.24 : 40,817,487.09 = 12,637,331.51 : x - Step 2: Convert to fraction form
27,219,408.24/40,817,487.09 = 12,637,331.51/x - Step 3: Cross multiply
27,219,408.24x = 40,817,487.09 × 12,637,331.51 - Step 4: Simplify right side
27,219,408.24x = 515,824,115,604,777.81 - Step 5: Solve for x
x = 515,824,115,604,777.81/27,219,408.24 - Step 6: Final answer
x = 18,950,599.92
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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.