Finding the Fourth Proportional to 61,118,985.21, 84,319,309.19 and 34,651,765.41
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Solution
The fourth proportional to 61,118,985.21, 84,319,309.19 and 34,651,765.41 is: 47,805,324.51
Step by Step Solution
- Step 1: Write the proportion equation
61,118,985.21 : 84,319,309.19 = 34,651,765.41 : x - Step 2: Convert to fraction form
61,118,985.21/84,319,309.19 = 34,651,765.41/x - Step 3: Cross multiply
61,118,985.21x = 84,319,309.19 × 34,651,765.41 - Step 4: Simplify right side
61,118,985.21x = 2,921,812,921,411,878 - Step 5: Solve for x
x = 2,921,812,921,411,878/61,118,985.21 - Step 6: Final answer
x = 47,805,324.51
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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.