Finding the Fourth Proportional to 13,316,823.74, 18,375,246.42 and 8,087,112.20
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Solution
The fourth proportional to 13,316,823.74, 18,375,246.42 and 8,087,112.20 is: 11,159,018.28
Step by Step Solution
- Step 1: Write the proportion equation
13,316,823.74 : 18,375,246.42 = 8,087,112.20 : x - Step 2: Convert to fraction form
13,316,823.74/18,375,246.42 = 8,087,112.20/x - Step 3: Cross multiply
13,316,823.74x = 18,375,246.42 × 8,087,112.20 - Step 4: Simplify right side
13,316,823.74x = 148,602,679,501,188.34 - Step 5: Solve for x
x = 148,602,679,501,188.34/13,316,823.74 - Step 6: Final answer
x = 11,159,018.28
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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.