Finding the Fourth Proportional to 57,781,973.94, 86,647,763.97 and 21,854,987.70
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Solution
The fourth proportional to 57,781,973.94, 86,647,763.97 and 21,854,987.70 is: 32,772,951.26
Step by Step Solution
- Step 1: Write the proportion equation
57,781,973.94 : 86,647,763.97 = 21,854,987.70 : x - Step 2: Convert to fraction form
57,781,973.94/86,647,763.97 = 21,854,987.70/x - Step 3: Cross multiply
57,781,973.94x = 86,647,763.97 × 21,854,987.70 - Step 4: Simplify right side
57,781,973.94x = 1,893,685,815,796,853 - Step 5: Solve for x
x = 1,893,685,815,796,853/57,781,973.94 - Step 6: Final answer
x = 32,772,951.26
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.