Finding the Fourth Proportional to 9,319,797,371.68, 12,861,233,452.48 and 5,090,707,641.76
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Solution
The fourth proportional to 9,319,797,371.68, 12,861,233,452.48 and 5,090,707,641.76 is: 7,025,129,067.50
Step by Step Solution
- Step 1: Write the proportion equation
9,319,797,371.68 : 12,861,233,452.48 = 5,090,707,641.76 : x - Step 2: Convert to fraction form
9,319,797,371.68/12,861,233,452.48 = 5,090,707,641.76/x - Step 3: Cross multiply
9,319,797,371.68x = 12,861,233,452.48 × 5,090,707,641.76 - Step 4: Simplify right side
9,319,797,371.68x = 65,472,779,418,999,283,712 - Step 5: Solve for x
x = 65,472,779,418,999,283,712/9,319,797,371.68 - Step 6: Final answer
x = 7,025,129,067.50
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1.5x scale
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.