Finding the Fourth Proportional to 816,950,638.14, 1,127,237,691.81 and 486,956,482.62
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Solution
The fourth proportional to 816,950,638.14, 1,127,237,691.81 and 486,956,482.62 is: 671,908,039.30
Step by Step Solution
- Step 1: Write the proportion equation
816,950,638.14 : 1,127,237,691.81 = 486,956,482.62 : x - Step 2: Convert to fraction form
816,950,638.14/1,127,237,691.81 = 486,956,482.62/x - Step 3: Cross multiply
816,950,638.14x = 1,127,237,691.81 × 486,956,482.62 - Step 4: Simplify right side
816,950,638.14x = 548,915,701,480,485,184 - Step 5: Solve for x
x = 548,915,701,480,485,184/816,950,638.14 - Step 6: Final answer
x = 671,908,039.30
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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.