Finding the Fourth Proportional to 373,386,805.12, 515,260,283.88 and 206,119,473.76
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Solution
The fourth proportional to 373,386,805.12, 515,260,283.88 and 206,119,473.76 is: 284,437,417.46
Step by Step Solution
- Step 1: Write the proportion equation
373,386,805.12 : 515,260,283.88 = 206,119,473.76 : x - Step 2: Convert to fraction form
373,386,805.12/515,260,283.88 = 206,119,473.76/x - Step 3: Cross multiply
373,386,805.12x = 515,260,283.88 × 206,119,473.76 - Step 4: Simplify right side
373,386,805.12x = 106,205,178,562,773,808 - Step 5: Solve for x
x = 106,205,178,562,773,808/373,386,805.12 - Step 6: Final answer
x = 284,437,417.46
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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.