Finding the Fourth Proportional to 13,609,337.99, 18,768,271.06 and 9,932,430.47
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Solution
The fourth proportional to 13,609,337.99, 18,768,271.06 and 9,932,430.47 is: 13,697,547.04
Step by Step Solution
- Step 1: Write the proportion equation
13,609,337.99 : 18,768,271.06 = 9,932,430.47 : x - Step 2: Convert to fraction form
13,609,337.99/18,768,271.06 = 9,932,430.47/x - Step 3: Cross multiply
13,609,337.99x = 18,768,271.06 × 9,932,430.47 - Step 4: Simplify right side
13,609,337.99x = 186,414,547,264,137.38 - Step 5: Solve for x
x = 186,414,547,264,137.38/13,609,337.99 - Step 6: Final answer
x = 13,697,547.04
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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.