Finding the Fourth Proportional to 376,057,102.49, 518,975,009.55 and 208,793,371.95
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Solution
The fourth proportional to 376,057,102.49, 518,975,009.55 and 208,793,371.95 is: 288,143,852.32
Step by Step Solution
- Step 1: Write the proportion equation
376,057,102.49 : 518,975,009.55 = 208,793,371.95 : x - Step 2: Convert to fraction form
376,057,102.49/518,975,009.55 = 208,793,371.95/x - Step 3: Cross multiply
376,057,102.49x = 518,975,009.55 × 208,793,371.95 - Step 4: Simplify right side
376,057,102.49x = 108,358,542,201,727,952 - Step 5: Solve for x
x = 108,358,542,201,727,952/376,057,102.49 - Step 6: Final answer
x = 288,143,852.32
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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.