Finding the Fourth Proportional to 248,832,905.80, 373,249,358.70 and 208,522,121.80
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Solution
The fourth proportional to 248,832,905.80, 373,249,358.70 and 208,522,121.80 is: 312,783,182.70
Step by Step Solution
- Step 1: Write the proportion equation
248,832,905.80 : 373,249,358.70 = 208,522,121.80 : x - Step 2: Convert to fraction form
248,832,905.80/373,249,358.70 = 208,522,121.80/x - Step 3: Cross multiply
248,832,905.80x = 373,249,358.70 × 208,522,121.80 - Step 4: Simplify right side
248,832,905.80x = 77,830,748,236,613,296 - Step 5: Solve for x
x = 77,830,748,236,613,296/248,832,905.80 - Step 6: Final answer
x = 312,783,182.70
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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.