Finding the Fourth Proportional to 442,869,079.80, 664,303,619.70 and 328,077,823.80
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Solution
The fourth proportional to 442,869,079.80, 664,303,619.70 and 328,077,823.80 is: 492,116,735.70
Step by Step Solution
- Step 1: Write the proportion equation
442,869,079.80 : 664,303,619.70 = 328,077,823.80 : x - Step 2: Convert to fraction form
442,869,079.80/664,303,619.70 = 328,077,823.80/x - Step 3: Cross multiply
442,869,079.80x = 664,303,619.70 × 328,077,823.80 - Step 4: Simplify right side
442,869,079.80x = 217,943,285,893,638,848 - Step 5: Solve for x
x = 217,943,285,893,638,848/442,869,079.80 - Step 6: Final answer
x = 492,116,735.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.