Finding the Fourth Proportional to 39,130,746.80, 54,000,535.56 and 21,727,125.68
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Solution
The fourth proportional to 39,130,746.80, 54,000,535.56 and 21,727,125.68 is: 29,983,491.73
Step by Step Solution
- Step 1: Write the proportion equation
39,130,746.80 : 54,000,535.56 = 21,727,125.68 : x - Step 2: Convert to fraction form
39,130,746.80/54,000,535.56 = 21,727,125.68/x - Step 3: Cross multiply
39,130,746.80x = 54,000,535.56 × 21,727,125.68 - Step 4: Simplify right side
39,130,746.80x = 1,173,276,422,899,429.25 - Step 5: Solve for x
x = 1,173,276,422,899,429.25/39,130,746.80 - Step 6: Final answer
x = 29,983,491.73
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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.