Finding the Fourth Proportional to 346,715,248.99, 478,466,928.12 and 190,078,992.91
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Solution
The fourth proportional to 346,715,248.99, 478,466,928.12 and 190,078,992.91 is: 262,308,946.90
Step by Step Solution
- Step 1: Write the proportion equation
346,715,248.99 : 478,466,928.12 = 190,078,992.91 : x - Step 2: Convert to fraction form
346,715,248.99/478,466,928.12 = 190,078,992.91/x - Step 3: Cross multiply
346,715,248.99x = 478,466,928.12 × 190,078,992.91 - Step 4: Simplify right side
346,715,248.99x = 90,946,511,837,790,960 - Step 5: Solve for x
x = 90,946,511,837,790,960/346,715,248.99 - Step 6: Final answer
x = 262,308,946.90
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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.