Finding the Fourth Proportional to 972,928,707.99, 1,461,721,266 and 623,858,682.99
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Solution
The fourth proportional to 972,928,707.99, 1,461,721,266 and 623,858,682.99 is: 937,280,909.09
Step by Step Solution
- Step 1: Write the proportion equation
972,928,707.99 : 1,461,721,266 = 623,858,682.99 : x - Step 2: Convert to fraction form
972,928,707.99/1,461,721,266 = 623,858,682.99/x - Step 3: Cross multiply
972,928,707.99x = 1,461,721,266 × 623,858,682.99 - Step 4: Simplify right side
972,928,707.99x = 911,907,503,905,235,456 - Step 5: Solve for x
x = 911,907,503,905,235,456/972,928,707.99 - Step 6: Final answer
x = 937,280,909.09
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Double scale
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.