Finding the Fourth Proportional to 77,692,832.77, 107,216,093.06 and 42,885,513.99
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Solution
The fourth proportional to 77,692,832.77, 107,216,093.06 and 42,885,513.99 is: 59,182,000.37
Step by Step Solution
- Step 1: Write the proportion equation
77,692,832.77 : 107,216,093.06 = 42,885,513.99 : x - Step 2: Convert to fraction form
77,692,832.77/107,216,093.06 = 42,885,513.99/x - Step 3: Cross multiply
77,692,832.77x = 107,216,093.06 × 42,885,513.99 - Step 4: Simplify right side
77,692,832.77x = 4,598,017,258,127,264 - Step 5: Solve for x
x = 4,598,017,258,127,264/77,692,832.77 - Step 6: Final answer
x = 59,182,000.37
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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.