Finding the Fourth Proportional to 217,742,750.40, 326,614,125.60 and 163,995,038.40
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Solution
The fourth proportional to 217,742,750.40, 326,614,125.60 and 163,995,038.40 is: 245,992,557.60
Step by Step Solution
- Step 1: Write the proportion equation
217,742,750.40 : 326,614,125.60 = 163,995,038.40 : x - Step 2: Convert to fraction form
217,742,750.40/326,614,125.60 = 163,995,038.40/x - Step 3: Cross multiply
217,742,750.40x = 326,614,125.60 × 163,995,038.40 - Step 4: Simplify right side
217,742,750.40x = 53,563,096,069,754,432 - Step 5: Solve for x
x = 53,563,096,069,754,432/217,742,750.40 - Step 6: Final answer
x = 245,992,557.60
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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.