Finding the Fourth Proportional to 19,571,841.70, 29,357,762.55 and 15,540,763.30
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Solution
The fourth proportional to 19,571,841.70, 29,357,762.55 and 15,540,763.30 is: 23,311,144.95
Step by Step Solution
- Step 1: Write the proportion equation
19,571,841.70 : 29,357,762.55 = 15,540,763.30 : x - Step 2: Convert to fraction form
19,571,841.70/29,357,762.55 = 15,540,763.30/x - Step 3: Cross multiply
19,571,841.70x = 29,357,762.55 × 15,540,763.30 - Step 4: Simplify right side
19,571,841.70x = 456,242,038,807,154.44 - Step 5: Solve for x
x = 456,242,038,807,154.44/19,571,841.70 - Step 6: Final answer
x = 23,311,144.95
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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.