Finding the Fourth Proportional to 577,368,117.20, 866,052,175.80 and 441,319,221.20
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Solution
The fourth proportional to 577,368,117.20, 866,052,175.80 and 441,319,221.20 is: 661,978,831.80
Step by Step Solution
- Step 1: Write the proportion equation
577,368,117.20 : 866,052,175.80 = 441,319,221.20 : x - Step 2: Convert to fraction form
577,368,117.20/866,052,175.80 = 441,319,221.20/x - Step 3: Cross multiply
577,368,117.20x = 866,052,175.80 × 441,319,221.20 - Step 4: Simplify right side
577,368,117.20x = 382,205,471,742,621,440 - Step 5: Solve for x
x = 382,205,471,742,621,440/577,368,117.20 - Step 6: Final answer
x = 661,978,831.80
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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.