Finding the Fourth Proportional to 15,962,830.98, 22,028,705.91 and 8,620,663.41
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Solution
The fourth proportional to 15,962,830.98, 22,028,705.91 and 8,620,663.41 is: 11,896,515.05
Step by Step Solution
- Step 1: Write the proportion equation
15,962,830.98 : 22,028,705.91 = 8,620,663.41 : x - Step 2: Convert to fraction form
15,962,830.98/22,028,705.91 = 8,620,663.41/x - Step 3: Cross multiply
15,962,830.98x = 22,028,705.91 × 8,620,663.41 - Step 4: Simplify right side
15,962,830.98x = 189,902,059,007,987.75 - Step 5: Solve for x
x = 189,902,059,007,987.75/15,962,830.98 - Step 6: Final answer
x = 11,896,515.05
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.