Finding the Fourth Proportional to 1,223,995,656.41, 1,836,353,701.97 and 394,933,746.09
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Solution
The fourth proportional to 1,223,995,656.41, 1,836,353,701.97 and 394,933,746.09 is: 592,516,846.66
Step by Step Solution
- Step 1: Write the proportion equation
1,223,995,656.41 : 1,836,353,701.97 = 394,933,746.09 : x - Step 2: Convert to fraction form
1,223,995,656.41/1,836,353,701.97 = 394,933,746.09/x - Step 3: Cross multiply
1,223,995,656.41x = 1,836,353,701.97 × 394,933,746.09 - Step 4: Simplify right side
1,223,995,656.41x = 725,238,046,657,891,328 - Step 5: Solve for x
x = 725,238,046,657,891,328/1,223,995,656.41 - Step 6: Final answer
x = 592,516,846.66
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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.