Finding the Fourth Proportional to 440,780,264.12, 608,258,498.70 and 239,837,968.28
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Solution
The fourth proportional to 440,780,264.12, 608,258,498.70 and 239,837,968.28 is: 330,966,457.42
Step by Step Solution
- Step 1: Write the proportion equation
440,780,264.12 : 608,258,498.70 = 239,837,968.28 : x - Step 2: Convert to fraction form
440,780,264.12/608,258,498.70 = 239,837,968.28/x - Step 3: Cross multiply
440,780,264.12x = 608,258,498.70 × 239,837,968.28 - Step 4: Simplify right side
440,780,264.12x = 145,883,482,517,251,040 - Step 5: Solve for x
x = 145,883,482,517,251,040/440,780,264.12 - Step 6: Final answer
x = 330,966,457.42
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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.