Finding the Fourth Proportional to 478,759,537.68, 718,346,692.40 and 257,172,321
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Solution
The fourth proportional to 478,759,537.68, 718,346,692.40 and 257,172,321 is: 385,869,881.70
Step by Step Solution
- Step 1: Write the proportion equation
478,759,537.68 : 718,346,692.40 = 257,172,321 : x - Step 2: Convert to fraction form
478,759,537.68/718,346,692.40 = 257,172,321/x - Step 3: Cross multiply
478,759,537.68x = 718,346,692.40 × 257,172,321 - Step 4: Simplify right side
478,759,537.68x = 184,738,886,167,181,056 - Step 5: Solve for x
x = 184,738,886,167,181,056/478,759,537.68 - Step 6: Final answer
x = 385,869,881.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.