Finding the Fourth Proportional to 98,703,946,688.92, 136,211,446,430.68 and 56,460,764,480.92
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Solution
The fourth proportional to 98,703,946,688.92, 136,211,446,430.68 and 56,460,764,480.92 is: 77,915,854,983.65
Step by Step Solution
- Step 1: Write the proportion equation
98,703,946,688.92 : 136,211,446,430.68 = 56,460,764,480.92 : x - Step 2: Convert to fraction form
98,703,946,688.92/136,211,446,430.68 = 56,460,764,480.92/x - Step 3: Cross multiply
98,703,946,688.92x = 136,211,446,430.68 × 56,460,764,480.92 - Step 4: Simplify right side
98,703,946,688.92x = 7,690,602,396,527,393,505,280 - Step 5: Solve for x
x = 7,690,602,396,527,393,505,280/98,703,946,688.92 - Step 6: Final answer
x = 77,915,854,983.65
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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.