Finding the Fourth Proportional to 958,987,276.38, 1,323,402,446.07 and 518,954,132.70
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Solution
The fourth proportional to 958,987,276.38, 1,323,402,446.07 and 518,954,132.70 is: 716,156,705.65
Step by Step Solution
- Step 1: Write the proportion equation
958,987,276.38 : 1,323,402,446.07 = 518,954,132.70 : x - Step 2: Convert to fraction form
958,987,276.38/1,323,402,446.07 = 518,954,132.70/x - Step 3: Cross multiply
958,987,276.38x = 1,323,402,446.07 × 518,954,132.70 - Step 4: Simplify right side
958,987,276.38x = 686,785,168,613,315,328 - Step 5: Solve for x
x = 686,785,168,613,315,328/958,987,276.38 - Step 6: Final answer
x = 716,156,705.65
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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.