Finding the Fourth Proportional to 139,782,130.66, 192,899,924.91 and 77,056,852
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Solution
The fourth proportional to 139,782,130.66, 192,899,924.91 and 77,056,852 is: 106,338,778.03
Step by Step Solution
- Step 1: Write the proportion equation
139,782,130.66 : 192,899,924.91 = 77,056,852 : x - Step 2: Convert to fraction form
139,782,130.66/192,899,924.91 = 77,056,852/x - Step 3: Cross multiply
139,782,130.66x = 192,899,924.91 × 77,056,852 - Step 4: Simplify right side
139,782,130.66x = 14,864,260,964,600,984 - Step 5: Solve for x
x = 14,864,260,964,600,984/139,782,130.66 - Step 6: Final answer
x = 106,338,778.03
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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.