Finding the Fourth Proportional to 712,407,134,105.13, 983,122,478,558.17 and 387,246,425,918.07
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Solution
The fourth proportional to 712,407,134,105.13, 983,122,478,558.17 and 387,246,425,918.07 is: 534,400,412,117.69
Step by Step Solution
- Step 1: Write the proportion equation
712,407,134,105.13 : 983,122,478,558.17 = 387,246,425,918.07 : x - Step 2: Convert to fraction form
712,407,134,105.13/983,122,478,558.17 = 387,246,425,918.07/x - Step 3: Cross multiply
712,407,134,105.13x = 983,122,478,558.17 × 387,246,425,918.07 - Step 4: Simplify right side
712,407,134,105.13x = 380,710,666,061,365,733,490,688 - Step 5: Solve for x
x = 380,710,666,061,365,733,490,688/712,407,134,105.13 - Step 6: Final answer
x = 534,400,412,117.69
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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.