Finding the Fourth Proportional to 138,984,248.56, 191,718,576.80 and 86,682,482.08
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Solution
The fourth proportional to 138,984,248.56, 191,718,576.80 and 86,682,482.08 is: 119,572,126.12
Step by Step Solution
- Step 1: Write the proportion equation
138,984,248.56 : 191,718,576.80 = 86,682,482.08 : x - Step 2: Convert to fraction form
138,984,248.56/191,718,576.80 = 86,682,482.08/x - Step 3: Cross multiply
138,984,248.56x = 191,718,576.80 × 86,682,482.08 - Step 4: Simplify right side
138,984,248.56x = 16,618,642,097,869,104 - Step 5: Solve for x
x = 16,618,642,097,869,104/138,984,248.56 - Step 6: Final answer
x = 119,572,126.12
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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.