Finding the Fourth Proportional to 516,224,319.21, 712,389,663 and 281,274,979.68
Calculator
Solution
The fourth proportional to 516,224,319.21, 712,389,663 and 281,274,979.68 is: 388,159,527.80
Step by Step Solution
- Step 1: Write the proportion equation
516,224,319.21 : 712,389,663 = 281,274,979.68 : x - Step 2: Convert to fraction form
516,224,319.21/712,389,663 = 281,274,979.68/x - Step 3: Cross multiply
516,224,319.21x = 712,389,663 × 281,274,979.68 - Step 4: Simplify right side
516,224,319.21x = 200,377,387,984,567,040 - Step 5: Solve for x
x = 200,377,387,984,567,040/516,224,319.21 - Step 6: Final answer
x = 388,159,527.80
Related Problems
Find fourth proportional to 258,112,159.61, 356,194,831.50 and 140,637,489.84
Half scale
Find fourth proportional to 1,032,448,638.42, 1,424,779,326 and 562,549,959.36
Double scale
Find fourth proportional to 516,224,320.21, 712,389,664.38 and 281,274,980.68
Similar ratio
Find fourth proportional to 774,336,478.82, 1,068,584,494.50 and 421,912,469.52
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.