Finding the Fourth Proportional to 918,267,484.80, 1,378,836,117.90 and 530,846,995.80
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Solution
The fourth proportional to 918,267,484.80, 1,378,836,117.90 and 530,846,995.80 is: 797,099,998.64
Step by Step Solution
- Step 1: Write the proportion equation
918,267,484.80 : 1,378,836,117.90 = 530,846,995.80 : x - Step 2: Convert to fraction form
918,267,484.80/1,378,836,117.90 = 530,846,995.80/x - Step 3: Cross multiply
918,267,484.80x = 1,378,836,117.90 × 530,846,995.80 - Step 4: Simplify right side
918,267,484.80x = 731,951,010,887,749,632 - Step 5: Solve for x
x = 731,951,010,887,749,632/918,267,484.80 - Step 6: Final answer
x = 797,099,998.64
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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.