Finding the Fourth Proportional to 19,906,363,792.21, 29,859,341,176.49 and 11,506,924,905.23
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Solution
The fourth proportional to 19,906,363,792.21, 29,859,341,176.49 and 11,506,924,905.23 is: 17,260,269,139.25
Step by Step Solution
- Step 1: Write the proportion equation
19,906,363,792.21 : 29,859,341,176.49 = 11,506,924,905.23 : x - Step 2: Convert to fraction form
19,906,363,792.21/29,859,341,176.49 = 11,506,924,905.23/x - Step 3: Cross multiply
19,906,363,792.21x = 29,859,341,176.49 × 11,506,924,905.23 - Step 4: Simplify right side
19,906,363,792.21x = 343,589,196,637,305,634,816 - Step 5: Solve for x
x = 343,589,196,637,305,634,816/19,906,363,792.21 - Step 6: Final answer
x = 17,260,269,139.25
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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.