Finding the Fourth Proportional to 779,887,920.90, 1,076,360,842.49 and 493,806,037.94
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Solution
The fourth proportional to 779,887,920.90, 1,076,360,842.49 and 493,806,037.94 is: 681,525,471.51
Step by Step Solution
- Step 1: Write the proportion equation
779,887,920.90 : 1,076,360,842.49 = 493,806,037.94 : x - Step 2: Convert to fraction form
779,887,920.90/1,076,360,842.49 = 493,806,037.94/x - Step 3: Cross multiply
779,887,920.90x = 1,076,360,842.49 × 493,806,037.94 - Step 4: Simplify right side
779,887,920.90x = 531,513,483,015,896,448 - Step 5: Solve for x
x = 531,513,483,015,896,448/779,887,920.90 - Step 6: Final answer
x = 681,525,471.51
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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.