Finding the Fourth Proportional to 883,317,048.20, 1,218,927,783.66 and 486,838,836.44
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Solution
The fourth proportional to 883,317,048.20, 1,218,927,783.66 and 486,838,836.44 is: 671,810,178.59
Step by Step Solution
- Step 1: Write the proportion equation
883,317,048.20 : 1,218,927,783.66 = 486,838,836.44 : x - Step 2: Convert to fraction form
883,317,048.20/1,218,927,783.66 = 486,838,836.44/x - Step 3: Cross multiply
883,317,048.20x = 1,218,927,783.66 × 486,838,836.44 - Step 4: Simplify right side
883,317,048.20x = 593,421,383,901,422,464 - Step 5: Solve for x
x = 593,421,383,901,422,464/883,317,048.20 - Step 6: Final answer
x = 671,810,178.59
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Double scale
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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.