Finding the Fourth Proportional to 239,765,164.63, 330,875,924.09 and 129,756,877.63
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Solution
The fourth proportional to 239,765,164.63, 330,875,924.09 and 129,756,877.63 is: 179,064,489.45
Step by Step Solution
- Step 1: Write the proportion equation
239,765,164.63 : 330,875,924.09 = 129,756,877.63 : x - Step 2: Convert to fraction form
239,765,164.63/330,875,924.09 = 129,756,877.63/x - Step 3: Cross multiply
239,765,164.63x = 330,875,924.09 × 129,756,877.63 - Step 4: Simplify right side
239,765,164.63x = 42,933,426,791,383,320 - Step 5: Solve for x
x = 42,933,426,791,383,320/239,765,164.63 - Step 6: Final answer
x = 179,064,489.45
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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.