Finding the Fourth Proportional to 624,281,944.48, 861,497,809.68 and 345,822,606.88
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Solution
The fourth proportional to 624,281,944.48, 861,497,809.68 and 345,822,606.88 is: 477,228,952.40
Step by Step Solution
- Step 1: Write the proportion equation
624,281,944.48 : 861,497,809.68 = 345,822,606.88 : x - Step 2: Convert to fraction form
624,281,944.48/861,497,809.68 = 345,822,606.88/x - Step 3: Cross multiply
624,281,944.48x = 861,497,809.68 × 345,822,606.88 - Step 4: Simplify right side
624,281,944.48x = 297,925,418,364,947,648 - Step 5: Solve for x
x = 297,925,418,364,947,648/624,281,944.48 - Step 6: Final answer
x = 477,228,952.40
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1.5x scale
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.