Finding the Fourth Proportional to 624,552,981.12, 861,600,490.56 and 376,955,187.84
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Solution
The fourth proportional to 624,552,981.12, 861,600,490.56 and 376,955,187.84 is: 520,027,579.05
Step by Step Solution
- Step 1: Write the proportion equation
624,552,981.12 : 861,600,490.56 = 376,955,187.84 : x - Step 2: Convert to fraction form
624,552,981.12/861,600,490.56 = 376,955,187.84/x - Step 3: Cross multiply
624,552,981.12x = 861,600,490.56 × 376,955,187.84 - Step 4: Simplify right side
624,552,981.12x = 324,784,774,762,080,896 - Step 5: Solve for x
x = 324,784,774,762,080,896/624,552,981.12 - Step 6: Final answer
x = 520,027,579.05
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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.