Finding the Fourth Proportional to 961,121,816,746.39, 1,326,349,088,701.30 and 521,659,291,563.41
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Solution
The fourth proportional to 961,121,816,746.39, 1,326,349,088,701.30 and 521,659,291,563.41 is: 719,890,355,126.82
Step by Step Solution
- Step 1: Write the proportion equation
961,121,816,746.39 : 1,326,349,088,701.30 = 521,659,291,563.41 : x - Step 2: Convert to fraction form
961,121,816,746.39/1,326,349,088,701.30 = 521,659,291,563.41/x - Step 3: Cross multiply
961,121,816,746.39x = 1,326,349,088,701.30 × 521,659,291,563.41 - Step 4: Simplify right side
961,121,816,746.39x = 691,902,325,977,694,607,507,456 - Step 5: Solve for x
x = 691,902,325,977,694,607,507,456/961,121,816,746.39 - Step 6: Final answer
x = 719,890,355,126.82
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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.