Finding the Fourth Proportional to 352,272,128.80, 528,408,193.20 and 229,828,122.40
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Solution
The fourth proportional to 352,272,128.80, 528,408,193.20 and 229,828,122.40 is: 344,742,183.60
Step by Step Solution
- Step 1: Write the proportion equation
352,272,128.80 : 528,408,193.20 = 229,828,122.40 : x - Step 2: Convert to fraction form
352,272,128.80/528,408,193.20 = 229,828,122.40/x - Step 3: Cross multiply
352,272,128.80x = 528,408,193.20 × 229,828,122.40 - Step 4: Simplify right side
352,272,128.80x = 121,443,062,903,932,448 - Step 5: Solve for x
x = 121,443,062,903,932,448/352,272,128.80 - Step 6: Final answer
x = 344,742,183.60
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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.