Finding the Fourth Proportional to 77,812,511.13, 116,718,610.09 and 73,077,372.09
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Solution
The fourth proportional to 77,812,511.13, 116,718,610.09 and 73,077,372.09 is: 109,615,911.06
Step by Step Solution
- Step 1: Write the proportion equation
77,812,511.13 : 116,718,610.09 = 73,077,372.09 : x - Step 2: Convert to fraction form
77,812,511.13/116,718,610.09 = 73,077,372.09/x - Step 3: Cross multiply
77,812,511.13x = 116,718,610.09 × 73,077,372.09 - Step 4: Simplify right side
77,812,511.13x = 8,529,489,299,374,559 - Step 5: Solve for x
x = 8,529,489,299,374,559/77,812,511.13 - Step 6: Final answer
x = 109,615,911.06
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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.