Finding the Fourth Proportional to 12,709,358.36, 17,539,031.95 and 6,908,153.75
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Solution
The fourth proportional to 12,709,358.36, 17,539,031.95 and 6,908,153.75 is: 9,533,315.99
Step by Step Solution
- Step 1: Write the proportion equation
12,709,358.36 : 17,539,031.95 = 6,908,153.75 : x - Step 2: Convert to fraction form
12,709,358.36/17,539,031.95 = 6,908,153.75/x - Step 3: Cross multiply
12,709,358.36x = 17,539,031.95 × 6,908,153.75 - Step 4: Simplify right side
12,709,358.36x = 121,162,329,231,796.78 - Step 5: Solve for x
x = 121,162,329,231,796.78/12,709,358.36 - Step 6: Final answer
x = 9,533,315.99
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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.