Finding the Fourth Proportional to 18,030,866.97, 24,881,343.69 and 10,688,320.65
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Solution
The fourth proportional to 18,030,866.97, 24,881,343.69 and 10,688,320.65 is: 14,749,139.91
Step by Step Solution
- Step 1: Write the proportion equation
18,030,866.97 : 24,881,343.69 = 10,688,320.65 : x - Step 2: Convert to fraction form
18,030,866.97/24,881,343.69 = 10,688,320.65/x - Step 3: Cross multiply
18,030,866.97x = 24,881,343.69 × 10,688,320.65 - Step 4: Simplify right side
18,030,866.97x = 265,939,779,561,574.22 - Step 5: Solve for x
x = 265,939,779,561,574.22/18,030,866.97 - Step 6: Final answer
x = 14,749,139.91
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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.