Finding the Fourth Proportional to 1,387,825,161.22, 1,915,180,854.78 and 793,102,835.08
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Solution
The fourth proportional to 1,387,825,161.22, 1,915,180,854.78 and 793,102,835.08 is: 1,094,471,701.52
Step by Step Solution
- Step 1: Write the proportion equation
1,387,825,161.22 : 1,915,180,854.78 = 793,102,835.08 : x - Step 2: Convert to fraction form
1,387,825,161.22/1,915,180,854.78 = 793,102,835.08/x - Step 3: Cross multiply
1,387,825,161.22x = 1,915,180,854.78 × 793,102,835.08 - Step 4: Simplify right side
1,387,825,161.22x = 1,518,935,365,616,955,904 - Step 5: Solve for x
x = 1,518,935,365,616,955,904/1,387,825,161.22 - Step 6: Final answer
x = 1,094,471,701.52
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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.