Finding the Fourth Proportional to 1,243,349,467.11, 1,716,596,616.02 and 791,482,394.25
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Solution
The fourth proportional to 1,243,349,467.11, 1,716,596,616.02 and 791,482,394.25 is: 1,092,738,635.07
Step by Step Solution
- Step 1: Write the proportion equation
1,243,349,467.11 : 1,716,596,616.02 = 791,482,394.25 : x - Step 2: Convert to fraction form
1,243,349,467.11/1,716,596,616.02 = 791,482,394.25/x - Step 3: Cross multiply
1,243,349,467.11x = 1,716,596,616.02 × 791,482,394.25 - Step 4: Simplify right side
1,243,349,467.11x = 1,358,655,999,605,000,192 - Step 5: Solve for x
x = 1,358,655,999,605,000,192/1,243,349,467.11 - Step 6: Final answer
x = 1,092,738,635.07
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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.