Finding the Fourth Proportional to 163,862,316.54, 245,828,904.21 and 87,174,199.26
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Solution
The fourth proportional to 163,862,316.54, 245,828,904.21 and 87,174,199.26 is: 130,780,147.21
Step by Step Solution
- Step 1: Write the proportion equation
163,862,316.54 : 245,828,904.21 = 87,174,199.26 : x - Step 2: Convert to fraction form
163,862,316.54/245,828,904.21 = 87,174,199.26/x - Step 3: Cross multiply
163,862,316.54x = 245,828,904.21 × 87,174,199.26 - Step 4: Simplify right side
163,862,316.54x = 21,429,937,879,469,996 - Step 5: Solve for x
x = 21,429,937,879,469,996/163,862,316.54 - Step 6: Final answer
x = 130,780,147.21
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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.