Finding the Fourth Proportional to 138,564,958.40, 207,847,437.60 and 106,316,331.20
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Solution
The fourth proportional to 138,564,958.40, 207,847,437.60 and 106,316,331.20 is: 159,474,496.80
Step by Step Solution
- Step 1: Write the proportion equation
138,564,958.40 : 207,847,437.60 = 106,316,331.20 : x - Step 2: Convert to fraction form
138,564,958.40/207,847,437.60 = 106,316,331.20/x - Step 3: Cross multiply
138,564,958.40x = 207,847,437.60 × 106,316,331.20 - Step 4: Simplify right side
138,564,958.40x = 22,097,577,014,952,932 - Step 5: Solve for x
x = 22,097,577,014,952,932/138,564,958.40 - Step 6: Final answer
x = 159,474,496.80
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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.