Finding the Fourth Proportional to 982,823,610.15, 1,355,398,320.36 and 768,270,600.15
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Solution
The fourth proportional to 982,823,610.15, 1,355,398,320.36 and 768,270,600.15 is: 1,059,511,259.47
Step by Step Solution
- Step 1: Write the proportion equation
982,823,610.15 : 1,355,398,320.36 = 768,270,600.15 : x - Step 2: Convert to fraction form
982,823,610.15/1,355,398,320.36 = 768,270,600.15/x - Step 3: Cross multiply
982,823,610.15x = 1,355,398,320.36 × 768,270,600.15 - Step 4: Simplify right side
982,823,610.15x = 1,041,312,681,025,279,104 - Step 5: Solve for x
x = 1,041,312,681,025,279,104/982,823,610.15 - Step 6: Final answer
x = 1,059,511,259.47
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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.