Finding the Fourth Proportional to 418,929,765.39, 578,101,709.04 and 230,754,008.36
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Solution
The fourth proportional to 418,929,765.39, 578,101,709.04 and 230,754,008.36 is: 318,428,762.09
Step by Step Solution
- Step 1: Write the proportion equation
418,929,765.39 : 578,101,709.04 = 230,754,008.36 : x - Step 2: Convert to fraction form
418,929,765.39/578,101,709.04 = 230,754,008.36/x - Step 3: Cross multiply
418,929,765.39x = 578,101,709.04 × 230,754,008.36 - Step 4: Simplify right side
418,929,765.39x = 133,399,286,597,855,920 - Step 5: Solve for x
x = 133,399,286,597,855,920/418,929,765.39 - Step 6: Final answer
x = 318,428,762.09
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.