Finding the Fourth Proportional to 346,883,518.81, 478,655,125.25 and 198,214,276.81
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Solution
The fourth proportional to 346,883,518.81, 478,655,125.25 and 198,214,276.81 is: 273,510,485.07
Step by Step Solution
- Step 1: Write the proportion equation
346,883,518.81 : 478,655,125.25 = 198,214,276.81 : x - Step 2: Convert to fraction form
346,883,518.81/478,655,125.25 = 198,214,276.81/x - Step 3: Cross multiply
346,883,518.81x = 478,655,125.25 × 198,214,276.81 - Step 4: Simplify right side
346,883,518.81x = 94,876,279,491,837,648 - Step 5: Solve for x
x = 94,876,279,491,837,648/346,883,518.81 - Step 6: Final answer
x = 273,510,485.07
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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.