Finding the Fourth Proportional to 134,839,656.21, 186,027,279.08 and 81,896,393.18
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Solution
The fourth proportional to 134,839,656.21, 186,027,279.08 and 81,896,393.18 is: 112,985,775.98
Step by Step Solution
- Step 1: Write the proportion equation
134,839,656.21 : 186,027,279.08 = 81,896,393.18 : x - Step 2: Convert to fraction form
134,839,656.21/186,027,279.08 = 81,896,393.18/x - Step 3: Cross multiply
134,839,656.21x = 186,027,279.08 × 81,896,393.18 - Step 4: Simplify right side
134,839,656.21x = 15,234,963,189,796,854 - Step 5: Solve for x
x = 15,234,963,189,796,854/134,839,656.21 - Step 6: Final answer
x = 112,985,775.98
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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.