Finding the Fourth Proportional to 128,858,338.41, 177,824,536.01 and 70,911,586.41
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Solution
The fourth proportional to 128,858,338.41, 177,824,536.01 and 70,911,586.41 is: 97,858,005.20
Step by Step Solution
- Step 1: Write the proportion equation
128,858,338.41 : 177,824,536.01 = 70,911,586.41 : x - Step 2: Convert to fraction form
128,858,338.41/177,824,536.01 = 70,911,586.41/x - Step 3: Cross multiply
128,858,338.41x = 177,824,536.01 × 70,911,586.41 - Step 4: Simplify right side
128,858,338.41x = 12,609,819,950,736,712 - Step 5: Solve for x
x = 12,609,819,950,736,712/128,858,338.41 - Step 6: Final answer
x = 97,858,005.20
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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.