Finding the Fourth Proportional to 1,284,221,881.44, 1,772,216,456.04 and 697,515,216.48
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Solution
The fourth proportional to 1,284,221,881.44, 1,772,216,456.04 and 697,515,216.48 is: 962,565,708.35
Step by Step Solution
- Step 1: Write the proportion equation
1,284,221,881.44 : 1,772,216,456.04 = 697,515,216.48 : x - Step 2: Convert to fraction form
1,284,221,881.44/1,772,216,456.04 = 697,515,216.48/x - Step 3: Cross multiply
1,284,221,881.44x = 1,772,216,456.04 × 697,515,216.48 - Step 4: Simplify right side
1,284,221,881.44x = 1,236,147,944,984,158,976 - Step 5: Solve for x
x = 1,236,147,944,984,158,976/1,284,221,881.44 - Step 6: Final answer
x = 962,565,708.35
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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.