Finding the Fourth Proportional to 19,934,430.90, 29,915,643.15 and 8,583,026.10
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Solution
The fourth proportional to 19,934,430.90, 29,915,643.15 and 8,583,026.10 is: 12,880,565.65
Step by Step Solution
- Step 1: Write the proportion equation
19,934,430.90 : 29,915,643.15 = 8,583,026.10 : x - Step 2: Convert to fraction form
19,934,430.90/29,915,643.15 = 8,583,026.10/x - Step 3: Cross multiply
19,934,430.90x = 29,915,643.15 × 8,583,026.10 - Step 4: Simplify right side
19,934,430.90x = 256,766,745,954,736.19 - Step 5: Solve for x
x = 256,766,745,954,736.19/19,934,430.90 - Step 6: Final answer
x = 12,880,565.65
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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.