Finding the Fourth Proportional to 689,247,659.97, 951,160,617.59 and 375,981,873.93
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Solution
The fourth proportional to 689,247,659.97, 951,160,617.59 and 375,981,873.93 is: 518,854,356.97
Step by Step Solution
- Step 1: Write the proportion equation
689,247,659.97 : 951,160,617.59 = 375,981,873.93 : x - Step 2: Convert to fraction form
689,247,659.97/951,160,617.59 = 375,981,873.93/x - Step 3: Cross multiply
689,247,659.97x = 951,160,617.59 × 375,981,873.93 - Step 4: Simplify right side
689,247,659.97x = 357,619,151,408,024,448 - Step 5: Solve for x
x = 357,619,151,408,024,448/689,247,659.97 - Step 6: Final answer
x = 518,854,356.97
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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.