Finding the Fourth Proportional to 7,948,791,471.90, 10,969,012,865.48 and 4,331,738,402.66
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Solution
The fourth proportional to 7,948,791,471.90, 10,969,012,865.48 and 4,331,738,402.66 is: 5,977,624,955.52
Step by Step Solution
- Step 1: Write the proportion equation
7,948,791,471.90 : 10,969,012,865.48 = 4,331,738,402.66 : x - Step 2: Convert to fraction form
7,948,791,471.90/10,969,012,865.48 = 4,331,738,402.66/x - Step 3: Cross multiply
7,948,791,471.90x = 10,969,012,865.48 × 4,331,738,402.66 - Step 4: Simplify right side
7,948,791,471.90x = 47,514,894,268,671,320,064 - Step 5: Solve for x
x = 47,514,894,268,671,320,064/7,948,791,471.90 - Step 6: Final answer
x = 5,977,624,955.52
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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.