Finding the Fourth Proportional to 134,857,642.91, 186,103,547.87 and 72,977,982.08
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Solution
The fourth proportional to 134,857,642.91, 186,103,547.87 and 72,977,982.08 is: 100,709,615.62
Step by Step Solution
- Step 1: Write the proportion equation
134,857,642.91 : 186,103,547.87 = 72,977,982.08 : x - Step 2: Convert to fraction form
134,857,642.91/186,103,547.87 = 72,977,982.08/x - Step 3: Cross multiply
134,857,642.91x = 186,103,547.87 × 72,977,982.08 - Step 4: Simplify right side
134,857,642.91x = 13,581,461,380,185,876 - Step 5: Solve for x
x = 13,581,461,380,185,876/134,857,642.91 - Step 6: Final answer
x = 100,709,615.62
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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.