Finding the Fourth Proportional to 256,244,711.73, 353,615,941.38 and 138,767,353.63
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Solution
The fourth proportional to 256,244,711.73, 353,615,941.38 and 138,767,353.63 is: 191,497,994.46
Step by Step Solution
- Step 1: Write the proportion equation
256,244,711.73 : 353,615,941.38 = 138,767,353.63 : x - Step 2: Convert to fraction form
256,244,711.73/353,615,941.38 = 138,767,353.63/x - Step 3: Cross multiply
256,244,711.73x = 353,615,941.38 × 138,767,353.63 - Step 4: Simplify right side
256,244,711.73x = 49,070,348,386,683,808 - Step 5: Solve for x
x = 49,070,348,386,683,808/256,244,711.73 - Step 6: Final answer
x = 191,497,994.46
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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.