Finding the Fourth Proportional to 373,588,701.39, 515,518,479.68 and 208,545,900.75
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Solution
The fourth proportional to 373,588,701.39, 515,518,479.68 and 208,545,900.75 is: 287,774,403.50
Step by Step Solution
- Step 1: Write the proportion equation
373,588,701.39 : 515,518,479.68 = 208,545,900.75 : x - Step 2: Convert to fraction form
373,588,701.39/515,518,479.68 = 208,545,900.75/x - Step 3: Cross multiply
373,588,701.39x = 515,518,479.68 × 208,545,900.75 - Step 4: Simplify right side
373,588,701.39x = 107,509,265,697,093,440 - Step 5: Solve for x
x = 107,509,265,697,093,440/373,588,701.39 - Step 6: Final answer
x = 287,774,403.50
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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.