Finding the Fourth Proportional to 138,984,246.56, 191,718,574.04 and 86,682,480.08
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Solution
The fourth proportional to 138,984,246.56, 191,718,574.04 and 86,682,480.08 is: 119,572,123.36
Step by Step Solution
- Step 1: Write the proportion equation
138,984,246.56 : 191,718,574.04 = 86,682,480.08 : x - Step 2: Convert to fraction form
138,984,246.56/191,718,574.04 = 86,682,480.08/x - Step 3: Cross multiply
138,984,246.56x = 191,718,574.04 × 86,682,480.08 - Step 4: Simplify right side
138,984,246.56x = 16,618,641,475,188,304 - Step 5: Solve for x
x = 16,618,641,475,188,304/138,984,246.56 - Step 6: Final answer
x = 119,572,123.36
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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.