Finding the Fourth Proportional to 168,303,082,891.68, 232,258,478,319.36 and 91,141,055,658.72
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Solution
The fourth proportional to 168,303,082,891.68, 232,258,478,319.36 and 91,141,055,658.72 is: 125,774,778,073.07
Step by Step Solution
- Step 1: Write the proportion equation
168,303,082,891.68 : 232,258,478,319.36 = 91,141,055,658.72 : x - Step 2: Convert to fraction form
168,303,082,891.68/232,258,478,319.36 = 91,141,055,658.72/x - Step 3: Cross multiply
168,303,082,891.68x = 232,258,478,319.36 × 91,141,055,658.72 - Step 4: Simplify right side
168,303,082,891.68x = 21,168,282,899,714,402,156,544 - Step 5: Solve for x
x = 21,168,282,899,714,402,156,544/168,303,082,891.68 - Step 6: Final answer
x = 125,774,778,073.07
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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.