Finding the Fourth Proportional to 612,712,968.99, 845,428,255.62 and 365,217,352.35
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Solution
The fourth proportional to 612,712,968.99, 845,428,255.62 and 365,217,352.35 is: 503,931,016.23
Step by Step Solution
- Step 1: Write the proportion equation
612,712,968.99 : 845,428,255.62 = 365,217,352.35 : x - Step 2: Convert to fraction form
612,712,968.99/845,428,255.62 = 365,217,352.35/x - Step 3: Cross multiply
612,712,968.99x = 845,428,255.62 × 365,217,352.35 - Step 4: Simplify right side
612,712,968.99x = 308,765,069,121,687,808 - Step 5: Solve for x
x = 308,765,069,121,687,808/612,712,968.99 - Step 6: Final answer
x = 503,931,016.23
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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.