Finding the Fourth Proportional to 1,243,349,472.03, 1,716,596,622.74 and 791,482,399.26
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Solution
The fourth proportional to 1,243,349,472.03, 1,716,596,622.74 and 791,482,399.26 is: 1,092,738,641.95
Step by Step Solution
- Step 1: Write the proportion equation
1,243,349,472.03 : 1,716,596,622.74 = 791,482,399.26 : x - Step 2: Convert to fraction form
1,243,349,472.03/1,716,596,622.74 = 791,482,399.26/x - Step 3: Cross multiply
1,243,349,472.03x = 1,716,596,622.74 × 791,482,399.26 - Step 4: Simplify right side
1,243,349,472.03x = 1,358,656,013,529,847,040 - Step 5: Solve for x
x = 1,358,656,013,529,847,040/1,243,349,472.03 - Step 6: Final answer
x = 1,092,738,641.95
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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.