Finding the Fourth Proportional to 19,422,622.40, 29,137,432.80 and 8,064,219.20
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Solution
The fourth proportional to 19,422,622.40, 29,137,432.80 and 8,064,219.20 is: 12,097,781.66
Step by Step Solution
- Step 1: Write the proportion equation
19,422,622.40 : 29,137,432.80 = 8,064,219.20 : x - Step 2: Convert to fraction form
19,422,622.40/29,137,432.80 = 8,064,219.20/x - Step 3: Cross multiply
19,422,622.40x = 29,137,432.80 × 8,064,219.20 - Step 4: Simplify right side
19,422,622.40x = 234,970,645,024,469.78 - Step 5: Solve for x
x = 234,970,645,024,469.78/19,422,622.40 - Step 6: Final answer
x = 12,097,781.66
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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.