Finding the Fourth Proportional to 58,847,887.58, 81,221,327.98 and 38,966,586.35
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Solution
The fourth proportional to 58,847,887.58, 81,221,327.98 and 38,966,586.35 is: 53,781,333.88
Step by Step Solution
- Step 1: Write the proportion equation
58,847,887.58 : 81,221,327.98 = 38,966,586.35 : x - Step 2: Convert to fraction form
58,847,887.58/81,221,327.98 = 38,966,586.35/x - Step 3: Cross multiply
58,847,887.58x = 81,221,327.98 × 38,966,586.35 - Step 4: Simplify right side
58,847,887.58x = 3,164,917,889,690,818 - Step 5: Solve for x
x = 3,164,917,889,690,818/58,847,887.58 - Step 6: Final answer
x = 53,781,333.88
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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.