Finding the Fourth Proportional to 910,127,213.98, 1,255,966,613.67 and 492,430,334.38
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Solution
The fourth proportional to 910,127,213.98, 1,255,966,613.67 and 492,430,334.38 is: 679,549,023.52
Step by Step Solution
- Step 1: Write the proportion equation
910,127,213.98 : 1,255,966,613.67 = 492,430,334.38 : x - Step 2: Convert to fraction form
910,127,213.98/1,255,966,613.67 = 492,430,334.38/x - Step 3: Cross multiply
910,127,213.98x = 1,255,966,613.67 × 492,430,334.38 - Step 4: Simplify right side
910,127,213.98x = 618,476,059,539,634,432 - Step 5: Solve for x
x = 618,476,059,539,634,432/910,127,213.98 - Step 6: Final answer
x = 679,549,023.52
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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.