Finding the Fourth Proportional to 1,972,323,831.87, 2,721,850,946.71 and 1,125,534,295.36
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Solution
The fourth proportional to 1,972,323,831.87, 2,721,850,946.71 and 1,125,534,295.36 is: 1,553,262,470.33
Step by Step Solution
- Step 1: Write the proportion equation
1,972,323,831.87 : 2,721,850,946.71 = 1,125,534,295.36 : x - Step 2: Convert to fraction form
1,972,323,831.87/2,721,850,946.71 = 1,125,534,295.36/x - Step 3: Cross multiply
1,972,323,831.87x = 2,721,850,946.71 × 1,125,534,295.36 - Step 4: Simplify right side
1,972,323,831.87x = 3,063,536,587,380,641,280 - Step 5: Solve for x
x = 3,063,536,587,380,641,280/1,972,323,831.87 - Step 6: Final answer
x = 1,553,262,470.33
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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.