Finding the Fourth Proportional to 6,381,347.16, 8,809,509.06 and 4,927,779.48
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Solution
The fourth proportional to 6,381,347.16, 8,809,509.06 and 4,927,779.48 is: 6,802,845.37
Step by Step Solution
- Step 1: Write the proportion equation
6,381,347.16 : 8,809,509.06 = 4,927,779.48 : x - Step 2: Convert to fraction form
6,381,347.16/8,809,509.06 = 4,927,779.48/x - Step 3: Cross multiply
6,381,347.16x = 8,809,509.06 × 4,927,779.48 - Step 4: Simplify right side
6,381,347.16x = 43,411,317,974,742.09 - Step 5: Solve for x
x = 43,411,317,974,742.09/6,381,347.16 - Step 6: Final answer
x = 6,802,845.37
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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.