Finding the Fourth Proportional to 1,945,778,135.90, 2,918,747,921.76 and 565,592,643.63
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Solution
The fourth proportional to 1,945,778,135.90, 2,918,747,921.76 and 565,592,643.63 is: 848,412,428.27
Step by Step Solution
- Step 1: Write the proportion equation
1,945,778,135.90 : 2,918,747,921.76 = 565,592,643.63 : x - Step 2: Convert to fraction form
1,945,778,135.90/2,918,747,921.76 = 565,592,643.63/x - Step 3: Cross multiply
1,945,778,135.90x = 2,918,747,921.76 × 565,592,643.63 - Step 4: Simplify right side
1,945,778,135.90x = 1,650,822,353,157,806,848 - Step 5: Solve for x
x = 1,650,822,353,157,806,848/1,945,778,135.90 - Step 6: Final answer
x = 848,412,428.27
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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.