Finding the Fourth Proportional to 1,243,349,440.09, 1,716,596,578.76 and 791,482,367.25
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Solution
The fourth proportional to 1,243,349,440.09, 1,716,596,578.76 and 791,482,367.25 is: 1,092,738,597.82
Step by Step Solution
- Step 1: Write the proportion equation
1,243,349,440.09 : 1,716,596,578.76 = 791,482,367.25 : x - Step 2: Convert to fraction form
1,243,349,440.09/1,716,596,578.76 = 791,482,367.25/x - Step 3: Cross multiply
1,243,349,440.09x = 1,716,596,578.76 × 791,482,367.25 - Step 4: Simplify right side
1,243,349,440.09x = 1,358,655,923,766,258,432 - Step 5: Solve for x
x = 1,358,655,923,766,258,432/1,243,349,440.09 - Step 6: Final answer
x = 1,092,738,597.82
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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.