Finding the Fourth Proportional to 26,879,186.72, 40,307,569.68 and 8,430,378.56
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Solution
The fourth proportional to 26,879,186.72, 40,307,569.68 and 8,430,378.56 is: 12,642,051.81
Step by Step Solution
- Step 1: Write the proportion equation
26,879,186.72 : 40,307,569.68 = 8,430,378.56 : x - Step 2: Convert to fraction form
26,879,186.72/40,307,569.68 = 8,430,378.56/x - Step 3: Cross multiply
26,879,186.72x = 40,307,569.68 × 8,430,378.56 - Step 4: Simplify right side
26,879,186.72x = 339,808,071,235,978.06 - Step 5: Solve for x
x = 339,808,071,235,978.06/26,879,186.72 - Step 6: Final answer
x = 12,642,051.81
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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.