Finding the Fourth Proportional to 977,170,386.30, 1,465,755,579.45 and 824,115,378.30
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Solution
The fourth proportional to 977,170,386.30, 1,465,755,579.45 and 824,115,378.30 is: 1,236,173,067.45
Step by Step Solution
- Step 1: Write the proportion equation
977,170,386.30 : 1,465,755,579.45 = 824,115,378.30 : x - Step 2: Convert to fraction form
977,170,386.30/1,465,755,579.45 = 824,115,378.30/x - Step 3: Cross multiply
977,170,386.30x = 1,465,755,579.45 × 824,115,378.30 - Step 4: Simplify right side
977,170,386.30x = 1,207,951,713,853,772,544 - Step 5: Solve for x
x = 1,207,951,713,853,772,544/977,170,386.30 - Step 6: Final answer
x = 1,236,173,067.45
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.