Finding the Fourth Proportional to 1,314,959,823.96, 1,814,579,827.45 and 720,246,953.13
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Solution
The fourth proportional to 1,314,959,823.96, 1,814,579,827.45 and 720,246,953.13 is: 993,905,340.77
Step by Step Solution
- Step 1: Write the proportion equation
1,314,959,823.96 : 1,814,579,827.45 = 720,246,953.13 : x - Step 2: Convert to fraction form
1,314,959,823.96/1,814,579,827.45 = 720,246,953.13/x - Step 3: Cross multiply
1,314,959,823.96x = 1,814,579,827.45 × 720,246,953.13 - Step 4: Simplify right side
1,314,959,823.96x = 1,306,945,591,932,023,552 - Step 5: Solve for x
x = 1,306,945,591,932,023,552/1,314,959,823.96 - Step 6: Final answer
x = 993,905,340.77
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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.