Finding the Fourth Proportional to 1,947,663,879.84, 2,686,208,946.48 and 1,712,211,109.92
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Solution
The fourth proportional to 1,947,663,879.84, 2,686,208,946.48 and 1,712,211,109.92 is: 2,361,473,583.47
Step by Step Solution
- Step 1: Write the proportion equation
1,947,663,879.84 : 2,686,208,946.48 = 1,712,211,109.92 : x - Step 2: Convert to fraction form
1,947,663,879.84/2,686,208,946.48 = 1,712,211,109.92/x - Step 3: Cross multiply
1,947,663,879.84x = 2,686,208,946.48 × 1,712,211,109.92 - Step 4: Simplify right side
1,947,663,879.84x = 4,599,356,801,729,554,944 - Step 5: Solve for x
x = 4,599,356,801,729,554,944/1,947,663,879.84 - Step 6: Final answer
x = 2,361,473,583.47
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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.