Finding the Fourth Proportional to 39,031,647.76, 53,864,854.68 and 21,626,364.56
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Solution
The fourth proportional to 39,031,647.76, 53,864,854.68 and 21,626,364.56 is: 29,845,037.33
Step by Step Solution
- Step 1: Write the proportion equation
39,031,647.76 : 53,864,854.68 = 21,626,364.56 : x - Step 2: Convert to fraction form
39,031,647.76/53,864,854.68 = 21,626,364.56/x - Step 3: Cross multiply
39,031,647.76x = 53,864,854.68 × 21,626,364.56 - Step 4: Simplify right side
39,031,647.76x = 1,164,900,984,281,102 - Step 5: Solve for x
x = 1,164,900,984,281,102/39,031,647.76 - Step 6: Final answer
x = 29,845,037.33
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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.