Finding the Fourth Proportional to 346,883,519.81, 478,655,126.62 and 198,214,277.81
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Solution
The fourth proportional to 346,883,519.81, 478,655,126.62 and 198,214,277.81 is: 273,510,486.45
Step by Step Solution
- Step 1: Write the proportion equation
346,883,519.81 : 478,655,126.62 = 198,214,277.81 : x - Step 2: Convert to fraction form
346,883,519.81/478,655,126.62 = 198,214,277.81/x - Step 3: Cross multiply
346,883,519.81x = 478,655,126.62 × 198,214,277.81 - Step 4: Simplify right side
346,883,519.81x = 94,876,280,243,037,408 - Step 5: Solve for x
x = 94,876,280,243,037,408/346,883,519.81 - Step 6: Final answer
x = 273,510,486.45
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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.