Finding the Fourth Proportional to 767,919,856.13, 1,059,721,856.97 and 415,488,113.97
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Solution
The fourth proportional to 767,919,856.13, 1,059,721,856.97 and 415,488,113.97 is: 573,369,515.28
Step by Step Solution
- Step 1: Write the proportion equation
767,919,856.13 : 1,059,721,856.97 = 415,488,113.97 : x - Step 2: Convert to fraction form
767,919,856.13/1,059,721,856.97 = 415,488,113.97/x - Step 3: Cross multiply
767,919,856.13x = 1,059,721,856.97 × 415,488,113.97 - Step 4: Simplify right side
767,919,856.13x = 440,301,835,685,664,832 - Step 5: Solve for x
x = 440,301,835,685,664,832/767,919,856.13 - Step 6: Final answer
x = 573,369,515.28
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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.